Cita APA

Ewan, J. (1969). A short history of botany in the United States. Hafner Pub. Co.

Citación estilo Chicago

Ewan, Joseph. A Short History of Botany in the United States. New York: Hafner Pub. Co, 1969.

Cita MLA

Ewan, Joseph. A Short History of Botany in the United States. New York: Hafner Pub. Co, 1969.