MLA

Chen, Peter P, et al. Active Conceptual Modeling of Learning. Springer Berlin Heidelberg, 2007.

APA

Chen, P. P, Chen, P. P. S, Kanade, T., Wong, L. Y, & Kittler, J. (2007). Active Conceptual Modeling of Learning. Springer Berlin Heidelberg.

Chicago

Chen, Peter P., Peter P. S Chen, Takeo Kanade, Leah Y Wong, and Josef Kittler. Active Conceptual Modeling of Learning. : Springer Berlin Heidelberg, 2007.