APA (7th ed.) Citation

Johnson, W. H. (1969). Essentials of biology. Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

Johnson, Willis H. Essentials of Biology. New York: Holt, Rinehart and Winston, 1969.

MLA (9th ed.) Citation

Johnson, Willis H. Essentials of Biology. Holt, Rinehart and Winston, 1969.

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