P

Panov, T. Social Economy Utopias. Sofia: Pechatnitza "G. M. Chomonov", 1911, 144 pp.

Paramonov, A. Fundamentals of Darwinism. Sofia: Narodna Prosveta, 1949, 272 pp.

Pavlovich, N (editor). Nikolai Pavlovich ~ an Almanac. Sofia: Nauka i Izkustvo, 1956, 351 pp.

Penkov, I and Hristov, T. Economic Geography of Bulgaria. Sofia: Nauka i Izkustvo, 1957, 583 pp.

Petkov, H and Sepetliev, D. Health Care Economics. Sofia: Medicina i Fizkultura, 1969, 239 pp.

Petrov, S. Textbook of Zootechnics ~ with Livestock Breeding  / 74 from "University Library"/. Sofia: Pechatnitza "Hudojnik", 1928, 360 pp.

Petrov, T. Basic Hygiene ~ a textbook. Sofia: Kambana, 1925, 953 pp.

Popov, M. Basic Biology /5th edition/. Sofia: Lekoop, 1946, 596 pp.

Popov, R. Man of the Ice Age. Sofia: Pechatnitza "Hudojnik", 1929, 80 pp.

Popov, R. Prehistoric Man in Bulgaria. Part II: Age of Metals. Sofia: Pechatnitza "Knipegraf", 1930, 88 pp.

Popov, Z. People's Liberal Party in Bulgaria 1903-1920. Sofia: Nauka i Izkustvo, 1986, 204 pp.

Popzaharieva, V (editor). Disaster Medicine. Stara Zagora: Znanie, 1995, 375 pp.

Primov, B. Robert de Clari and the Latin-Bulgarian Relations. Sofia: Universitetska Pechatnitza, 1947, 40 pp.