APA (7th ed.) Citation

Hegner, R. W., & Andrews, J. (1930). Problems and methods of research in protozoology.. The Macmillan company.

Chicago Style (17th ed.) Citation

Hegner, Robert William, and Justin Andrews. Problems and Methods of Research in Protozoology.. New York: The Macmillan company, 1930.

MLA (8th ed.) Citation

Hegner, Robert William, and Justin Andrews. Problems and Methods of Research in Protozoology.. The Macmillan company, 1930.