APA ציטוט

SAGAN, C. (1982). Pustaka ilmu life: Planet. Tira Pustaka.

Chicago Style (17th ed.) Citation

SAGAN, Carl. Pustaka Ilmu Life: Planet. Tira Pustaka, 1982.

ציטוט MLA

SAGAN, Carl. Pustaka Ilmu Life: Planet. Tira Pustaka, 1982.