APA

Kendrick J. W., Grossman E. S., . (1980). Productivity in the United States: trends and cycles. Baltimore: Johns Hopkins University Press.

Chicago

Kendrick John W, Grossman Elliot S, . 1980. Productivity in the United States: trends and cycles. Baltimore: Johns Hopkins University Press.

Harvard

Kendrick J. W., Grossman E. S., . (1980). Productivity in the United States: trends and cycles. Baltimore: Johns Hopkins University Press.

MLA

Kendrick John W, Grossman Elliot S, . Productivity in the United States: trends and cycles. Baltimore: Johns Hopkins University Press. 1980.