APA

United States, . (19). Financial audit: Forest Service's financial statements for fiscal year 1988. [Washington, D.C: .

Chicago

United States, . 19. Financial audit: Forest Service's financial statements for fiscal year 1988. [Washington, D.C: .

Harvard

United States, . (19). Financial audit: Forest Service's financial statements for fiscal year 1988. [Washington, D.C: .

MLA

United States, . Financial audit: Forest Service's financial statements for fiscal year 1988. [Washington, D.C: . 19.