Gaya APA
Zamora, D, L. (1989).
Weed Technology Vol. 3 No. 1 January - March 1989 .
Madison, Wisconsin, AS:
Weed Sciences Society Of America.
Gaya MLA
Zamora, David, L..
"Weed Technology Vol. 3 No. 1 January - March 1989".
Madison, Wisconsin, AS:
Weed Sciences Society Of America,
1989.
Text.