Cita APA (7a ed.)

BURWELL, G. L., & TIEMPO, E. L. (2003). Byways of Spacetime: : My life, your life, one source, one life. Giraffe.

Cita Chicago Style (17a ed.)

BURWELL, George L., y Edith L. TIEMPO. Byways of Spacetime: : My Life, Your Life, One Source, One Life. Quezon City: Giraffe, 2003.

Cita MLA (9a ed.)

BURWELL, George L., y Edith L. TIEMPO. Byways of Spacetime: : My Life, Your Life, One Source, One Life. Giraffe, 2003.