APA (7th ed.) Citation

St. John, H., & English, E. H. (1929). Flora of Mt. Baker.

Chicago Style (17th ed.) Citation

St. John, Harold, and Edith Harden English. Flora of Mt. Baker. Portland, Or, 1929.

MLA (8th ed.) Citation

St. John, Harold, and Edith Harden English. Flora of Mt. Baker. 1929.

Warning: These citations may not always be 100% accurate.