APA citiranje

(1987). 1986-87 Directory of professional workers in state agricultural experiment stations and other cooperating state institutions. Washington: U.S Goverment Printing Office.

Trích dẫn kiểu Chicago

1986-87 Directory of Professional Workers in State Agricultural Experiment Stations and Other Cooperating State Institutions. Washington: U.S Goverment Printing Office, 1987.

MLA citiranje

1986-87 Directory of Professional Workers in State Agricultural Experiment Stations and Other Cooperating State Institutions. Washington: U.S Goverment Printing Office, 1987.