APA (7th ed.) Citation
Kauffman, E. G., Hazel, J. E., & Heffernan, B. D. (1977). Concepts and methods of biostratigraphy. Dowden, Hutchinson and Ross.
Chicago Style (17th ed.) Citation
Kauffman, Erle Galen, Joseph Ernst Hazel, and Barbara Duffy Heffernan. Concepts and Methods of Biostratigraphy. Stroudsburg, Penns: Dowden, Hutchinson and Ross, 1977.
MLA (9th ed.) Citation
Kauffman, Erle Galen, et al. Concepts and Methods of Biostratigraphy. Dowden, Hutchinson and Ross, 1977.
Warning: These citations may not always be 100% accurate.