APA (7th ed.) Citation

Costelloe, E., Sherry, E., & Magee, P. (2007). Determining Areas of Weakness in Introductory Programming as a Foundation for Reusable Learning Objects. Electronic journal of e-Learning, 5(1), 21-30.

Chicago Style (17th ed.) Citation

Costelloe, Eileen, Elisabeth Sherry, and Patricia Magee. "Determining Areas of Weakness in Introductory Programming as a Foundation for Reusable Learning Objects." Electronic Journal of E-Learning 5, no. 1 (2007): 21-30.

MLA (9th ed.) Citation

Costelloe, Eileen, et al. "Determining Areas of Weakness in Introductory Programming as a Foundation for Reusable Learning Objects." Electronic Journal of E-Learning, vol. 5, no. 1, 2007, pp. 21-30.