Funk, W. J., & Lewis, N. (1970). 30 days to a more powerful vocabulary (Newly rev. by Norman Lewis.). Pocket Books.
Style de citation Chicago (17e éd.)Funk, Wilfred John, et Norman Lewis. 30 Days to a More Powerful Vocabulary. Newly rev. by Norman Lewis. New York: Pocket Books, 1970.
Style de citation MLA (9e éd.)Funk, Wilfred John, et Norman Lewis. 30 Days to a More Powerful Vocabulary. Newly rev. by Norman Lewis. Pocket Books, 1970.
Attention : ces citations peuvent ne pas être correctes à 100%.