Wat is energie?

MLA

Blackwood, Paul, and H Kindt. Wat Is Energie?. Utrecht: Spectrum, 1965.

APA

Blackwood, P., & Kindt, H. (1965). Wat is energie?. Utrecht: Spectrum.

Chicago

Blackwood, Paul Wat Is Energie?. Translated by H Kindt. Utrecht: Spectrum, 1965.