Gaya APA

Tyson, N, D., Tyson, . (2017). E-book Astrophysics for People in a Hurry . : W. W. Norton & Company.

Gaya MLA

Tyson, Neil, DeGrasse., Tyson, . "E-book Astrophysics for People in a Hurry". : W. W. Norton & Company, 2017. Text.