APA

(1991). Index to the growers weed indentification handbook. Los Angeles, California, United States: University of California. Division of Agriculture and Natural Resources.

Chicago

1991. Index to the growers weed indentification handbook. Los Angeles, California, United States: University of California. Division of Agriculture and Natural Resources.

Harvard

(1991). Index to the growers weed indentification handbook. Los Angeles, California, United States: University of California. Division of Agriculture and Natural Resources.

MLA

Index to the growers weed indentification handbook. Los Angeles, California, United States: University of California. Division of Agriculture and Natural Resources. 1991.