Cita APA (7th ed.)

Pyke, M. (1961). The boundaries of science. Penguin.

Cita Chicago (17th ed.)

Pyke, Magnus. The Boundaries of Science. Australia: Penguin, 1961.

Cita MLA (9th ed.)

Pyke, Magnus. The Boundaries of Science. Penguin, 1961.

Atenció: Aquestes cites poden no estar 100% correctes.