APA (7th ed.) Citation

Begemann, K., & Begemann, K. (1987). HI rotation curves of spiral galaxies.

Chicago Style (17th ed.) Citation

Begemann, Kor, and Kornelis Begemann. HI Rotation Curves of Spiral Galaxies. 1987.

MLA (9th ed.) Citation

Begemann, Kor, and Kornelis Begemann. HI Rotation Curves of Spiral Galaxies. 1987.

Warning: These citations may not always be 100% accurate.