Wald, H. (1997). Spanish is fun: Book a lively lessons for beginners (Second edition.). AMSCO School Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWald, Heywood. Spanish Is Fun: Book a Lively Lessons for Beginners. Second edition. New York: AMSCO School Publications, 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWald, Heywood. Spanish Is Fun: Book a Lively Lessons for Beginners. Second edition. AMSCO School Publications, 1997.
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