Keefe, E. K. (1977). Area handbook for Portugal. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationKeefe, Eugene K. Area Handbook for Portugal. Washington, D.C: U.S. Government Printing Office, 1977.
ציטוט MLAKeefe, Eugene K. Area Handbook for Portugal. U.S. Government Printing Office, 1977.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.