APA

(1990). Rodale's illustrated encyclopedia of gardening and landscaping techniques. Emmaus PA: Rodale Press.

Chicago

1990. Rodale's illustrated encyclopedia of gardening and landscaping techniques. Emmaus PA: Rodale Press.

Harvard

(1990). Rodale's illustrated encyclopedia of gardening and landscaping techniques. Emmaus PA: Rodale Press.

MLA

Rodale's illustrated encyclopedia of gardening and landscaping techniques. Emmaus PA: Rodale Press. 1990.