APA

Shigo A. L., . (1986). A new tree biology dictionary : terms, topics, and treatments for trees and their problems and proper care. Durham, New Hampshire: Shigo and Trees Associates.

Chicago

Shigo Alex L, . 1986. A new tree biology dictionary : terms, topics, and treatments for trees and their problems and proper care. Durham, New Hampshire: Shigo and Trees Associates.

Harvard

Shigo A. L., . (1986). A new tree biology dictionary : terms, topics, and treatments for trees and their problems and proper care. Durham, New Hampshire: Shigo and Trees Associates.

MLA

Shigo Alex L, . A new tree biology dictionary : terms, topics, and treatments for trees and their problems and proper care. Durham, New Hampshire: Shigo and Trees Associates. 1986.