APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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