APA (7th ed.) Citation

Hardin, V. B., & Pettit, N. T. (1978). A guide to ecological screening and assessment. W.C. Brown.

Chicago Style (17th ed.) Citation

Hardin, Veralee B., and Nelia T. Pettit. A Guide to Ecological Screening and Assessment. Dubuque: W.C. Brown, 1978.

MLA (9th ed.) Citation

Hardin, Veralee B., and Nelia T. Pettit. A Guide to Ecological Screening and Assessment. W.C. Brown, 1978.