An Introduction to Greenhouse Production.

MLA

Ohio State Univ., Columbus.Agricultural Curriculum Materials Service., and Robert W. McMahon. An Introduction to Greenhouse Production. Jan. 1992. EBSCOhost, widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=eric&AN=ED346253&authtype=sso&custid=ns315887.

APA

Ohio State Univ., C. A. C. M. S., & McMahon, R. W. (1992). An Introduction to Greenhouse Production.

Chicago

Ohio State Univ., Columbus. Agricultural Curriculum Materials Service., and Robert W. McMahon. 1992. “An Introduction to Greenhouse Production,” January. http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=eric&AN=ED346253&authtype=sso&custid=ns315887.