APA Citation

Heidegger, M. 1., & Heidegger, M. 1. (1990). Was ist metaphysik?

Chicago Style Citation

Heidegger, Martin 1889-1976, and Martin 1889-1976 Heidegger. Was Ist Metaphysik? 1990.

MLA Citation

Heidegger, Martin 1889-1976, and Martin 1889-1976 Heidegger. Was Ist Metaphysik? 1990.

Warning: These citations may not always be 100% accurate.