Gaya APA

Lissens, A, W, R. et al (). Grote winkler prins 4 bio-cals Encyclopedie in twintig delen . : elsevier.

Gaya MLA

Lissens, A.J., Wiggers/, R.F.. et al. "Grote winkler prins 4 bio-cals Encyclopedie in twintig delen". : elsevier, . Text.