APA (7th ed.) Citation

Block, V. (1999). AmEx Publishing's leisurely gains. Crain's New York Business, 15(12), 3.

Chicago Style (17th ed.) Citation

Block, Valerie. "AmEx Publishing's Leisurely Gains." Crain's New York Business 15, no. 12 (1999): 3.

MLA (9th ed.) Citation

Block, Valerie. "AmEx Publishing's Leisurely Gains." Crain's New York Business, vol. 15, no. 12, 1999, p. 3.