APA (7th ed.) Citation

Alladin, S. M., & Narasimhan, K. S. (1982). Gravitational interactions between galaxies. North-Holland Publ. Co.

Chicago Style (17th ed.) Citation

Alladin, Saleh M., and K. S. Narasimhan. Gravitational Interactions Between Galaxies. Amsterdam: North-Holland Publ. Co, 1982.

MLA (9th ed.) Citation

Alladin, Saleh M., and K. S. Narasimhan. Gravitational Interactions Between Galaxies. North-Holland Publ. Co, 1982.