MLA

Pritchett, James G, Donald J Liu, and Harry M Kaiser. Optimal Choice of Generic Milk Advertising Expenditures by Media Outlet. USA, 1998.

APA

Pritchett, J. G, Liu, D. J, & Kaiser, H. M. (1998). Optimal choice of generic milk advertising expenditures by media outlet. USA.

Chicago

Pritchett, James G., Donald J Liu, and Harry M Kaiser. Optimal Choice of Generic Milk Advertising Expenditures by Media Outlet. USA, 1998.