Παραπομπή APA

Einstein, A. A., & Hawking, S. E. (2007). The essential Einstein, his greatest works.

Παραπομπή Chicago Style

Einstein, Albert; Author, και Stephen; Editor Hawking. The Essential Einstein, His Greatest Works. New Delhi, Penguin Books India (P) Ltd Ne, 2007.

Παραπομπή MLA

Einstein, Albert; Author, και Stephen; Editor Hawking. The Essential Einstein, His Greatest Works. 2007.