I u krokodila estʹ druzʹi͡a︡.
Publisher: Molodai͡a︡ gvardii͡a︡
Published: 1964
Place of publication: [Moskva]
Language: rus
Number of pages: 269
Subjects: Symbiosis.; Animal communication.
Notes: At head of title: Igorʹ Akimushkin.