Spence, Alexander P. Biology of human aging / Alexander P. Spence. - Englewood Cliffs : Prentice-Hall, 1989. - xvii, 285 p. : ill. ; 24 cm. Includes bibliographies and index. Open access. ISBN: 0130801852 LCCN: 8815147 Subjects--Topical Terms: Aging--Physiological aspects.