Johnston, Verna R. California forests and woodlands : : a natural history / [electronic resource] / Verna R. Johnston ; photographs by the author ; drawings by Carla J. Simmons.. — Berkeley : : University of California Press,, c1994.. — x, 222 p. : : ill. (some col.) ; 24 cm. - California natural history guides ; 58.
Includes bibliographical references (p. 193-199) and index.