APA (7e ed.) Bronvermelding

WARE, G. W., & MCCOLLUM, J. (1968). Producing vegetable crops. The Interstate Printers and Publishers.

Chicago (17e ed.) Bronvermelding

WARE, George W., en J.P MCCOLLUM. Producing Vegetable Crops. Illinois: The Interstate Printers and Publishers, 1968.

MLA (9e ed.) Bronvermelding

WARE, George W., en J.P MCCOLLUM. Producing Vegetable Crops. The Interstate Printers and Publishers, 1968.