The cost of living as modified by sanitary science.
By Ellen H. Richards.

APA Citation

Richards, E. H. (Ellen Henrietta). (1915). The cost of living as modified by sanitary science. 3rd ed., enl. New York: J. Wiley & sons.

MLA Citation

Richards, Ellen H. (Ellen Henrietta), 1842-1911. The Cost of Living As Modified by Sanitary Science. 3rd ed., enl. New York: J. Wiley & sons, 1915.

Warning: These citations may not always be complete (especially for serials).