APA (7th ed.) Citation

GOUNDSMIT, S. A. (1981). Waktu. Tira Pustaka.

Chicago Style (17th ed.) Citation

GOUNDSMIT, Samuel A. Waktu. Tira Pustaka, 1981.

MLA (8th ed.) Citation

GOUNDSMIT, Samuel A. Waktu. Tira Pustaka, 1981.

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