APA引文

Heller, M. (1992). Theoretical foundations of cosmology. Singapore: World Scientific.

Trích dẫn kiểu Chicago

Heller, Micheal. Theoretical Foundations of Cosmology. Singapore: World Scientific, 1992.

MLA引文

Heller, Micheal. Theoretical Foundations of Cosmology. Singapore: World Scientific, 1992.

警告：這些引文格式不一定是100％准確.