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MLA

Heiser, Nancy, et al. "Validation of the Child-care Expense Equations In the Math Model." , 71. Print

APA

Heiser, N., United States, U. States, Food and Nutrition Service, F. and Nutrition Service, & Mathematica Policy Research, I. (1992). Validation of the child-care expense equations in the MATH model.

Chicago

Heiser, Nancy., United States, Food and Nutrition Service, and Inc Mathematica Policy Research. "Validation of the child-care expense equations in the MATH model" (1992): 71.