Gale Group, Gale Research Company, & Thomson Gale (Firm). (1989). Government research directory (5th ed.). Gale Research Co.
Citace podle Chicago (17th ed.)Gale Group, Gale Research Company, a Thomson Gale (Firm). Government Research Directory. 5th ed. Detroit, Mich: Gale Research Co, 1989.
Citace podle MLA (9th ed.)Gale Group, et al. Government Research Directory. 5th ed. Gale Research Co, 1989.
Upozornění: Tyto citace jsou generovány automaticky. Nemusí být zcela správně podle citačních pravidel..