APA

Laughlin J. L. 1., .The elements of political economy : with some applications to questions of the day / by J. Laurence Laughlin, PH. D. head professor of political economy in the University of Chicago. New York, Cincinnati, Chicago : American book company, 1887: .

Chicago

Laughlin James Laurence 1850-1933, .The elements of political economy : with some applications to questions of the day / by J. Laurence Laughlin, PH. D. head professor of political economy in the University of Chicago. New York, Cincinnati, Chicago : American book company, 1887: .

Harvard

Laughlin J. L. 1., .The elements of political economy : with some applications to questions of the day / by J. Laurence Laughlin, PH. D. head professor of political economy in the University of Chicago. New York, Cincinnati, Chicago : American book company, 1887: .

MLA

Laughlin James Laurence 1850-1933, .New York, Cincinnati, Chicago : American book company, 1887: . .