Hellyer, David Tirrell, 1913- At the forest's edge : : memoir of a physician-naturalist / [electronic resource] / by David Tirrell Hellyer.. — 2nd printing.. — Seattle, Wash. : : Pacific Search Press,, 1986, c1985.. — 374 p. + [2] p. ads : : ill., ports. ; 22 cm
0931397030 (pbk.) 9780931397035 (pbk.)
Hellyer, David Tirrell, 1913- Hellyer, David Tirrell, 1913-