APA (7th ed.) Citation

Pack, A. N., & Palmer, E. L. (1927). The nature almanac: A handbook of nature education. American Nature Association.

Chicago Style (17th ed.) Citation

Pack, Arthur Newton, and E. Laurence Palmer. The Nature Almanac: A Handbook of Nature Education. Washington: American Nature Association, 1927.

MLA (9th ed.) Citation

Pack, Arthur Newton, and E. Laurence Palmer. The Nature Almanac: A Handbook of Nature Education. American Nature Association, 1927.