APA Edition Citation

Gribbin John. (1999). Birth of time: How we measured the age of the universe. U P.

Chicago Edition Citation

Gribbin John. Birth of Time: How We Measured the Age of the Universe. Hyderabad: U P, 1999.

MLA Edition Citation

Gribbin John. Birth of Time: How We Measured the Age of the Universe. U P, 1999.

Warning: These citations may not always be 100% accurate.