APA (7th ed.) Citation

Hay, R. (1974). The dictionary of house plants. McGraw-Hill Book Co., Inc.

Chicago Style (17th ed.) Citation

Hay, Roy. The Dictionary of House Plants. New York: McGraw-Hill Book Co., Inc, 1974.

MLA (9th ed.) Citation

Hay, Roy. The Dictionary of House Plants. McGraw-Hill Book Co., Inc, 1974.