APA引文

Keyhoe, D. E. (1953). Flying saucers from outer space.

Chicago Edition Citation

Keyhoe, Donald E. Flying Saucers from Outer Space. 1953.

MLA引文

Keyhoe, Donald E. Flying Saucers from Outer Space. 1953.

警告：這些引文格式不一定是100％准確.