Cita APA (7a ed.)

Hoyle, F., & Narlikar, J. (1980). The physics-astronomy frontier. W.H. Freeman & Co.

Cita Chicago Style (17a ed.)

Hoyle, Fred, y Jayant Narlikar. The Physics-astronomy Frontier. San Francisco, CA: W.H. Freeman & Co, 1980.

Cita MLA (9a ed.)

Hoyle, Fred, y Jayant Narlikar. The Physics-astronomy Frontier. W.H. Freeman & Co, 1980.