APA (7th ed.) Citation

MERRILL, P. W., & Burwell, C. G. (1933). Catalogue and bibliography of stars of classes B and A whose spectra have bright hydrogen lines. Astrophysical Journal, 78, 87. https://doi.org/10.1086/143490

Chicago Style (17th ed.) Citation

MERRILL, Paul Willard, and C. G. Burwell. "Catalogue and Bibliography of Stars of Classes B and A Whose Spectra Have Bright Hydrogen Lines." Astrophysical Journal 78 (1933): 87. https://doi.org/10.1086/143490.

MLA (9th ed.) Citation

MERRILL, Paul Willard, and C. G. Burwell. "Catalogue and Bibliography of Stars of Classes B and A Whose Spectra Have Bright Hydrogen Lines." Astrophysical Journal, vol. 78, 1933, p. 87, https://doi.org/10.1086/143490.