APA

Buck W. R., Ireland R. R., . (1989). Plagiotheciaceae. New York, New York, United States: The New York Botanical Garden.

Chicago

Buck William R, Ireland Robert R, . 1989. Plagiotheciaceae. New York, New York, United States: The New York Botanical Garden.

Harvard

Buck W. R., Ireland R. R., . (1989). Plagiotheciaceae. New York, New York, United States: The New York Botanical Garden.

MLA

Buck William R, Ireland Robert R, . Plagiotheciaceae. New York, New York, United States: The New York Botanical Garden. 1989.