E.S. Ptushenko books & textbook
Birds of the Soviet Union, Vol. 1
G. P. Dement'ev N. A. Gladkov E. S. Ptushenko E. P. Spangenberg A. M. Sudilovskaya
Israel Program for Scientific Translations /1966-01-01 Paperback / 704 Pages
Birds of the Soviet Union (Volume IV)
G.P. Dement'ev N.A. Gladkov Yu.A. Isakov N.N. Kartashev S.V. Kirikov A.V. Mikheev E.S. Ptushenko Dr. A. Birron Z.S. Cole
Israel Program Scientific Translations /1967-01-01 Paperback / 683 Pages
