Cita APA

Stefferud, A. (1956). The Wonders of seeds. [S.l.]: Harcourt.

Citación estilo Chicago

Stefferud, Alfred. The Wonders of Seeds. [S.l.]: Harcourt, 1956.

Cita MLA

Stefferud, Alfred. The Wonders of Seeds. [S.l.]: Harcourt, 1956.