MLA

Bergey, David Hendricks, Robert Earle Buchanan, and Norman Edwin Gibbons. Bergey's Manual of Determinative Bacteriology. 8th ed. Baltimore (Md.): Williams and Wilkins, 1974.

APA

Bergey, D. Hendricks, Buchanan, R. Earle, & Gibbons, N. Edwin. (1974). Bergey's manual of determinative bacteriology. 8th ed. Baltimore (Md.): Williams and Wilkins.

Chicago

Bergey, David Hendricks, Robert Earle Buchanan, and Norman Edwin Gibbons. Bergey's Manual of Determinative Bacteriology. 8th ed. Baltimore (Md.): Williams and Wilkins, 1974.