Cita APA (7th ed.)

Tattersall, O., & Ferreira, P. (2019). Testing gravity with black holes.

Cita Chicago (17th ed.)

Tattersall, O., i P. Ferreira. Testing Gravity with Black Holes. 2019.

Cita MLA (9th ed.)

Tattersall, O., i P. Ferreira. Testing Gravity with Black Holes. 2019.

Atenció: Aquestes cites poden no estar 100% correctes.