Παραπομπή APA

EK, M., Gellerstedt, G., & Henriksson, G. (2009). Pulp and paper chemistry and technology. De Gruyter.

Παραπομπή Chicago Style

EK, Monica., Goran Gellerstedt, και Gunnar Henriksson. Pulp and Paper Chemistry and Technology. Berlin: De Gruyter, 2009.

Παραπομπή MLA

EK, Monica., et al. Pulp and Paper Chemistry and Technology. De Gruyter, 2009.