Van Nostrand Reinhold Co., New York, 1976.

Birren, Faber and Henry L. Logan, “The Agreeable Environment,”

Architecture,

August 1960.

Bissonnette, T. H., “Experimental Modification of Breeding Cycles in Goats,”

Zoology,

July 1941.

Blum, Harold Francis,

Action and Diseases Caused by Light,

Reinhold Publishing Corp., 1941.

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