Gaya APA

HEFFERNAN, J, A, W., LICOLN, J, E. (1986). WRITING A COLLEGE WORKBOOK SECOND EDITION . NEW YORK: United States America.

Gaya MLA

HEFFERNAN, JAMES, A., W.., LICOLN, JOHN, E.. "WRITING A COLLEGE WORKBOOK SECOND EDITION". NEW YORK: United States America, 1986. Text.