APA (7th ed.) Citation

Asimov,Isaac. (1994). Masa depan di angkasa. Federal publications sdn.bhd..

Chicago Style (17th ed.) Citation

Asimov,Isaac. Masa Depan Di Angkasa. Kuala lumpur: Federal publications sdn.bhd., 1994.

MLA (9th ed.) Citation

Asimov,Isaac. Masa Depan Di Angkasa. Federal publications sdn.bhd., 1994.

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