APA (7th ed.) Citation

Johnson, E. R. (1972). Park resources for recreation. Charles E. Merrill.

Chicago Style (17th ed.) Citation

Johnson, Elvin R. Park Resources for Recreation. Columbus, Ohio: Charles E. Merrill, 1972.

MLA (8th ed.) Citation

Johnson, Elvin R. Park Resources for Recreation. Charles E. Merrill, 1972.