APA (7th ed.) Citation

Demek, J., Strida, M., Ditrichova, V., & Winter, L. G. (1971). Geography of Czechoslovakia. Academia.

Chicago Style (17th ed.) Citation

Demek, Jaromir, Miroslav Strida, Vera Ditrichova, and Lawrence G. Winter. Geography of Czechoslovakia. Prague: Academia, 1971.

MLA (9th ed.) Citation

Demek, Jaromir, et al. Geography of Czechoslovakia. Academia, 1971.