Echo. 4.

MLA

Bosch, Veerle, et al. Echo. 4. Kapellen: Pelckmans, 2010.

APA

Bosch, V., Deblaere, P., Maessen, B., & Mechelmans, J. (2010). Echo. 4. Kapellen: Pelckmans.

Chicago

Bosch, Veerle., Petra Deblaere, Bart Maessen, and Johnny Mechelmans. Echo. 4. Kapellen: Pelckmans, 2010.