Schawl, R. V. M. (1916). Wise and otherwise: A secret of successful advertising. S.n.].
Style de citation Chicago (17e éd.)Schawl, Robert V. M. Wise and Otherwise: A Secret of Successful Advertising. [S.l.: S.n.], 1916.
Style de citation MLA (8e éd.)Schawl, Robert V. M. Wise and Otherwise: A Secret of Successful Advertising. S.n.], 1916.
Attention : ces citations peuvent ne pas être correctes à 100%.