APA (7th ed.) Citation

Couper, H., & Henbest, N. (2013). Ensiklopedi ruang angkasa. Kanisius.

Chicago Style (17th ed.) Citation

Couper, Heather, and Nigel Henbest. Ensiklopedi Ruang Angkasa. Kanisius, 2013.

MLA (8th ed.) Citation

Couper, Heather, and Nigel Henbest. Ensiklopedi Ruang Angkasa. Kanisius, 2013.

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