Air Force Pamphlet No. AFP 160-6-1, Threshold Limit Values for Toxic Chemicals.

U.S. Department of the Air Force, February 16, 1959.

Allen, C. W. Astrophysical Quantities. London: The Athlone Press, 1955.

Asimov, Isaac. "'Our Lonely Planet," Astounding Science Fiction, 62, No. 3 (November, 1958), pp. 127-137.

Beadle, G. W. "The Place of Genetics in Modern Biology," Eng. Sei., 23, No. 6 (March, 1960), pp. 11-17.

Berger, R. "The Proton Irradiance of Methane, Ammonia and Water at 77° K," Proc. Nat. Acad. Sei. U. S., 47, No. 9 (September, 1961), p. 1434.

Blanco, V. M., and McCuskey, S. W. Basic Physics of the Solar System. Reading: Addison-Wesley Publishing Co., Inc., 1961.

Boss, B. General Catalog of 33342 Stars for the Epoch 1950. Washington: Carnegie Institution of Washington, 1936.

Bullard, Edward. "The Interior of the Earth," in The Earth as a Planet, ed. G. P. Kuiper. Chicago: University of Chicago Press, 1954, pp. 57-137. Bussard, R. W. "Galactic Matter and Interstellar Flight," Astronaut. Acta, 6, No. 4 (1960), pp. 179-194.

Calvin, M. Chemical Evolution and the Origin of Life, University of California Radiation Laboratory Report No. UCRL-2124 rev., August 11, 1955.

-. Origin of Life on Earth and Elsewhere, University of California Radiation

Laboratory Report No. UCRL-9005, December, 1959.

-. "The Chemistry of Life," Chem. Eng. News, 39, No. 21 (May 22, 1961), pp.

Was this article helpful?

0 0

Post a comment