APA (7th ed.) Citation

Button, G., & Koselka, R. (1994). Time bomb. Forbes, 154(6), 60.

Chicago Style (17th ed.) Citation

Button, Graham, and Rita Koselka. "Time Bomb." Forbes 154, no. 6 (1994): 60.

MLA (9th ed.) Citation

Button, Graham, and Rita Koselka. "Time Bomb." Forbes, vol. 154, no. 6, 1994, p. 60.