Periodicals 9,153 Poetry 1,718 Pictorial works 1,578 Popular works 1,504 Personal narratives 1,016 Problems, exercises, etc 955 Personal correspondence 621 Problems and exercises 489 Personal narratives, American 377 Preludes (Music) 263 Portraits 138 Popular Work 133 Personal Narrative 98 Personal narratives, Confederate 93 Prayers and devotions 87 Panel discussions 82 Popular music 76 Psychological fiction 71 Publicaciones periódicas 69 Patents 68 Psalms (Music) 67 Personal narratives, British 62 Polonaises (Music) 55 Programmed instruction 43 Polkas (Music) 39 Passacaglias 36 Personal narratives, German 36 Problems and Exercises 36 Photomicrography 34 Piano scores 31 Parodies, imitations, etc 28 Pavans (Music) 28 Pub OIT 27 Part songs 26 Political fiction 26 Popular Works 24 Problems, excercices, etc 24 Proefschriften (vorm) 23 Personal narratives, Canadian 22 Pre-Linnean works 22 Performance 21 Prophecies 19 Personal narratives, Jewish 18 Programmed instructional materials 17 Personal narratives, French 16 Practice Guideline 15 Paraphrases, English 12 Pastoral music 12 Photographs from space 12 Patterns 11 Personal narratives, Russian 11 Propaganda films 11 Personal narratives, Australian 10 Personal narratives, Dutch 10 Personal narratives, Japanese 10 Picture books 10 Posters 10 Programmed Instruction 10 Pamphlets 9 Prescriptions, formulae, receipts, etc 9 Papal documents 8 Paraphrases 8 Parts 8 Prayers 8 Personal narratives, Polish 7 Phonetic transcriptions 7 Phrase books 7 Pantomimes (Music) 6 Pastoral fiction 6 Photographs 6 Political platforms 6 Problems, exercices, etc 6 Public service announcements (Motion pictures) 6 Personal narratives, Belgian 5 Personal narratives, Israeli 5 Picaresque literature 5 Pictorial Work 5 Poems 5 Policy statements 5 Political plays 5 Privileges and immunities 5 Propers (Music) 5 Prose poems 5 Parables 4 Paraphrases, Latin 4 Personal narratives, Hungarian 4 Personal narratives, Italian 4 Personal narratives, Vietnamese 4 Philosophy 4 Piano scores (4 hands) 4 Picture books for children 4 Polyphonic chansons 4 Puppet television programs 4 Puzzles and games 4 Papyri, Demotic 3 Passenger lists 3 Personal Narratives 3 Personal narratives, Austrian 3 Personal narratives, Bosnian 3 Personal narratives, Korean 3