Gaya APA

, ., Duffy, T, M, J, D, H, 1, L, J, W, T, M. (1993). Designing environments for constructive learning . Springer, 1993: Springer, 1993.

Gaya MLA

, ., Duffy, Thomas, M.;, Jonassen,, David, H.,, 1947-2012;, Lowyck,, Joost;, Welsh,, Thomas, M. "Designing environments for constructive learning". Springer, 1993: Springer, 1993, 1993. .