Parson, R. L. (1964). Conserving American resources (2nd ed.). Prentice-Hall.
Chicago Style (17th ed.) CitationParson, Ruben L. Conserving American Resources. 2nd ed. Englewood Cliffs: Prentice-Hall, 1964.
ציטוט MLAParson, Ruben L. Conserving American Resources. 2nd ed. Prentice-Hall, 1964.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.