APA (7th ed.) Citation

(1977). Area handbook for Portugal: Research completed June 1976. U. S. Gov. Print. Off.

Chicago Style (17th ed.) Citation

Area Handbook for Portugal: Research Completed June 1976. Washington, DC: U. S. Gov. Print. Off, 1977.

MLA (9th ed.) Citation

Area Handbook for Portugal: Research Completed June 1976. U. S. Gov. Print. Off, 1977.