Style de citation APA

Messel, H. e., & Butler, S. T. e. (1964). The universe and its origin. St. Martin's Press.

Style de citation Chicago

Messel, H. ed, et S. T. ed Butler. The Universe and Its Origin. New York: St. Martin's Press, 1964.

Style de citation MLA

Messel, H. ed, et S. T. ed Butler. The Universe and Its Origin. St. Martin's Press, 1964.