APA (7e ed.) Bronvermelding

Watterson, J. C. (1985). Tomato diseases: A practical guide for seedsmen, growers and agricultural advisors. Petoseed Co.

Chicago (17e ed.) Bronvermelding

Watterson, Jon C. Tomato Diseases: A Practical Guide for Seedsmen, Growers and Agricultural Advisors. Saticoy: Petoseed Co, 1985.

MLA (9e ed.) Bronvermelding

Watterson, Jon C. Tomato Diseases: A Practical Guide for Seedsmen, Growers and Agricultural Advisors. Petoseed Co, 1985.