APA (7th ed.) Citation

Johnston, M. C. (1952). En marcha.: A first course in Spanish. F. Ungar Pub. Co..

Chicago Style (17th ed.) Citation

Johnston, Marjorie Cecil. En Marcha.: A First Course in Spanish. New York: F. Ungar Pub. Co., 1952.

MLA (9th ed.) Citation

Johnston, Marjorie Cecil. En Marcha.: A First Course in Spanish. F. Ungar Pub. Co., 1952.

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