APA

Barr M. E., . (1990). Some dictyosporous genera and species of pleosporales in North America. Bronx, New York: The New York Botanical Garden.

Chicago

Barr Margaret E, . 1990. Some dictyosporous genera and species of pleosporales in North America. Bronx, New York: The New York Botanical Garden.

Harvard

Barr M. E., . (1990). Some dictyosporous genera and species of pleosporales in North America. Bronx, New York: The New York Botanical Garden.

MLA

Barr Margaret E, . Some dictyosporous genera and species of pleosporales in North America. Bronx, New York: The New York Botanical Garden. 1990.