APA
Roger Tory Peterson, . (1986). Wildflowers. New York: Houghton Mifflin.
Chicago
Roger Tory Peterson, . 1986. Wildflowers. New York: Houghton Mifflin.
Harvard
Roger Tory Peterson, . (1986). Wildflowers. New York: Houghton Mifflin.
MLA
Roger Tory Peterson, . Wildflowers. New York: Houghton Mifflin. 1986.
