APA (7th ed.) Citation

Smit, T. (2009). The big launch. RSA Journal, 155(5538), 46.

Chicago Style (17th ed.) Citation

Smit, Tim. "The Big Launch." RSA Journal 155, no. 5538 (2009): 46.

MLA (9th ed.) Citation

Smit, Tim. "The Big Launch." RSA Journal, vol. 155, no. 5538, 2009, p. 46.