Germ plasm resources : a symposium presented at the Chicago meeting of the American Association for the Advancement of Science, 28-31 December, 1959. /
edited by Ralph E. Hodgson .-
- Washington : American Association for the Advancement of Science, 1961.
- xii, 381 p. : ill., maps, diagrs.
- (American Association for the Advancement of Science, Publication no. 66) .