APA (7th ed.) Citation

Cottrell, L. (1964). Lost worlds / by L. Cottrell. Elek.

Chicago Style (17th ed.) Citation

Cottrell, Leonard. Lost Worlds / by L. Cottrell. Elek, 1964.

MLA (9th ed.) Citation

Cottrell, Leonard. Lost Worlds / by L. Cottrell. Elek, 1964.

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