APA

Holm L., Pancho J. V., Herberger J. P. & Pluncknett D. L. (1979). A geographical atlas of worol weeds. New York: John Wiley & Sons.

Chicago

Holm Leroy, Pancho Juan V, Herberger James P and Pluncknett Donald L. 1979. A geographical atlas of worol weeds. New York: John Wiley & Sons.

Harvard

Holm L., Pancho J. V., Herberger J. P. and Pluncknett D. L. (1979). A geographical atlas of worol weeds. New York: John Wiley & Sons.

MLA

Holm Leroy, Pancho Juan V, Herberger James P and Pluncknett Donald L. A geographical atlas of worol weeds. New York: John Wiley & Sons. 1979.