Introducing Biology, Texas Southern UniversityCCC Staff, Halcyon Watkins · First published 1990Open the Tome
Introducing biologyLloyd Mason Smith, CCC Staff, Thomas L. Beitinger, Earl G. Zimmerman, Charles H. Bennett, L. L. Henderson, Halcyon Watkins, Chow, C. C. C. Staff, Haven C. Sweet · First published 1978Open the Tome
