APA Style

Hawking, Stephen. (2018). What is Inside a Black Hole? . United Kingdom: John Murray.

Chicago Style

Hawking, Stephen. What is Inside a Black Hole?. United Kingdom: John Murray, 2018. Book.

MLA Style

Hawking, Stephen. What is Inside a Black Hole?. United Kingdom: John Murray, 2018. Book.

Turabian Style

Hawking, Stephen. What is Inside a Black Hole?. United Kingdom: John Murray, 2018. Book.