Gaya APA

Spaventa, P, K, W, J, P, N, M. (1997). Interactions Access . : McGraw-Hill ESL/ELT.

Gaya MLA

Spaventa, Patricia, K., Werner;, John, P., Nelson;, Marilynn. "Interactions Access". : McGraw-Hill ESL/ELT, 1997. Text.