The Sierra Club handbook of seals and sirenians /
Randall R. Reeves, Brent S. Stewart, Stephen Leatherwood ; illustrations by Pieter A. Folkens.
- San Francisco : Sierra Club Books, c1992.
- xvi, 359 p. : ill. (some col.) ; 21 cm.
Includes bibliographical references (p. 321-342) and index.