APA (7th ed.) Citation

Mathis, R. F. (2013). The Asteroid Belt--A Computer Simulation. Creation Research Society Quarterly, 50(2), 68.

Chicago Style (17th ed.) Citation

Mathis, R. F. "The Asteroid Belt--A Computer Simulation." Creation Research Society Quarterly 50, no. 2 (2013): 68.

MLA (9th ed.) Citation

Mathis, R. F. "The Asteroid Belt--A Computer Simulation." Creation Research Society Quarterly, vol. 50, no. 2, 2013, p. 68.