APA (7th ed.) Citation

Stepanek, O. Birds of field and forest. Spring Books.

Chicago Style (17th ed.) Citation

Stepanek, Otakar. Birds of Field and Forest. London: Spring Books.

MLA (9th ed.) Citation

Stepanek, Otakar. Birds of Field and Forest. Spring Books.

Warning: These citations may not always be 100% accurate.