Tullock, G. (1966). The organization of inquiry. Duke University.
Chicago Style (17th ed.) ZitazioaTullock, Gordon. The Organization of Inquiry. Durham: Duke University, 1966.
MLA (9th ed.) ZitazioaTullock, Gordon. The Organization of Inquiry. Duke University, 1966.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.