Cita APA (7a ed.)

Frieman, J., Harari, D., & Surpi, G. Gravitational lens time delays and gravitational waves.

Cita Chicago Style (17a ed.)

Frieman, J.A, D.D Harari, y G.C Surpi. Gravitational Lens Time Delays and Gravitational Waves.

Cita MLA (8a ed.)

Frieman, J.A, et al. Gravitational Lens Time Delays and Gravitational Waves.