The essential guide to aging in the twenty-first century :
mind, body, and behavior /
Donald H. Kausler, Barry C. Kausler, Jill A. Krupsaw.

APA Citation

Kausler, D. H., Krupsaw, J. A., Kausler, B. C. (2007). The essential guide to aging in the twenty-first century: mind, body, and behavior. [3rd ed.]. Columbia: University of Missouri Press.

MLA Citation

Kausler, Donald H, Jill A Krupsaw, and Barry C. Kausler. The Essential Guide to Aging In the Twenty-first Century: Mind, Body, And Behavior. [3rd ed.]. Columbia: University of Missouri Press, 2007.

Warning: These citations may not always be complete (especially for serials).