MLA

Meyerdirk, Carl F. To Serve Agriculture: Primary Purpose for Rfd. USA: American Association of Agricultural College Editors, 1962.

APA

Meyerdirk, C. F. (1962). To serve agriculture: primary purpose for RFD. USA: American Association of Agricultural College Editors.

Chicago

Meyerdirk, Carl F. To Serve Agriculture: Primary Purpose for RFD. USA: American Association of Agricultural College Editors, 1962.