APA Citation

Hughes, S. J. (1969). Four preussian genera. [s.l.]: [s.n.].

Chicago Style Citation

Hughes, Stanley J. Four Preussian Genera. [s.l.]: [s.n.], 1969.

MLA Citation

Hughes, Stanley J. Four Preussian Genera. [s.l.]: [s.n.], 1969.

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