APA (7th ed.) Citation

Hubbard, H. V., & Hubbard, T. K. (1917). An introduction to the study of landscape design. The Macmillan Company.

Chicago Style (17th ed.) Citation

Hubbard, Henry Vincent, and Theodora Kimball Hubbard. An Introduction to the Study of Landscape Design. New York: The Macmillan Company, 1917.

MLA (9th ed.) Citation

Hubbard, Henry Vincent, and Theodora Kimball Hubbard. An Introduction to the Study of Landscape Design. The Macmillan Company, 1917.