एपीए उद्धरण

Weyl, H., & Helmer, O. (2009). Philosophy of mathematics and natural science. Princeton.

शिकागो स्टाइल उद्धरण

Weyl, Hermann, और Olaf Helmer. Philosophy of Mathematics and Natural Science. New Jersey: Princeton, 2009.

एमएलए उद्धरण

Weyl, Hermann, और Olaf Helmer. Philosophy of Mathematics and Natural Science. Princeton, 2009.