APA (7th ed.) Citation

Laer, P. H. v. (1956). Philosophy of science. Duquesne University.

Chicago Style (17th ed.) Citation

Laer, Pierre Henri van. Philosophy of Science. Pittsburgh: Duquesne University, 1956.

MLA (9th ed.) Citation

Laer, Pierre Henri van. Philosophy of Science. Duquesne University, 1956.