ICN-UCLA SYMPOSIA ON MOLECULAR AND CELLULAR BIOLOGY ; VOL. 23 541,825 DEVELOPMENTAL Developmental biology using purified genes : Proceedings of the 1981 ICN—UCLA Symposiaon [...] held in Keystone, Colorado, on March 15—20, 1981 /ed. by Donald D. Brown [...]— New York /etc: Academic Press, 1981. - XXI, [1] 702 s. tabl. : il., wykr. ; 23 cm (ICN—UCLA Symposia on Molecular and Cellular Biology ; vol. 23) ISBN 0-12-137420-3