524,740 NIU M.C. /red./ The role of RITA [ribonucleic acid] in reproduction and development. Proceedings of the A.A.A.S. (American Association for the Advancement of Science) Symposium, December 28-30, 1972. Ed. by M. C. Niu and S. J. Segal. Amsterdam 1973 Uorth-HoHand Publishing Company; New York- American Elsevier Publishing Co., Inc. 8° s. XIII, nlb. 1, 357, ilustr.