APA (7th ed.) Citation

Burroughs, E. R. (1973). Tarzan o invencível. Portugal Press.

Chicago Style (17th ed.) Citation

Burroughs, Edgar Rice. Tarzan O Invencível. Portugal Press, 1973.

MLA (8th ed.) Citation

Burroughs, Edgar Rice. Tarzan O Invencível. Portugal Press, 1973.

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