APA (7th ed.) Citation

(1978). Spanish in three months (Sixth Edition.). Hugo's Language Books.

Chicago Style (17th ed.) Citation

Spanish in Three Months. Sixth Edition. London: Hugo's Language Books, 1978.

MLA (8th ed.) Citation

Spanish in Three Months. Sixth Edition. Hugo's Language Books, 1978.

Warning: These citations may not always be 100% accurate.