APA引文

Harmon, D. E. (2018). The early days of space exploration. Britannica Educational Publishing in association with Rosen Educational Services.

Chicago Style (17th ed.) Citation

Harmon, Daniel E. The Early Days of Space Exploration. New York, NY: Britannica Educational Publishing in association with Rosen Educational Services, 2018.

MLA引文

Harmon, Daniel E. The Early Days of Space Exploration. Britannica Educational Publishing in association with Rosen Educational Services, 2018.

警告：這些引文格式不一定是100％准確.