APA (7th ed.) Citation

Asimov,Isaac. (1992). Astronomi hari ini. Federal publications sdn.bhd..

Chicago Style (17th ed.) Citation

Asimov,Isaac. Astronomi Hari Ini. Kuala lumpur: Federal publications sdn.bhd., 1992.

MLA (9th ed.) Citation

Asimov,Isaac. Astronomi Hari Ini. Federal publications sdn.bhd., 1992.

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