Cruz, Z. L. (2013). Principles of tourism. Rex Book Store.
Chicago Style (17th ed.) CitationCruz, Zenaida Lansangan. Principles of Tourism. Manila: Rex Book Store, 2013.
ציטוט MLACruz, Zenaida Lansangan. Principles of Tourism. Rex Book Store, 2013.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.