@book{44222,
	author = {Cheng, Thomas C. and American Society of Zoologists.},
	title = {Aspects of the biology of symbiosis.},
	publisher = {University Park Press},
	year = {[1971]},
	address = {Baltimore},
	note = {Proceedings of a symposium entitled The biology of symbiosis held in Boston, Dec. 28-29, 1969, under the joint auspices of the American Society of Zoologists, the American Association for the Advancement of Science, and the Society for Invertebrate Pathology.}
}