Cita APA (7a ed.)

Niemela, V. Observations of southern Wolf-Rayet stars - I: The spectroscopic binary HD 90657.

Cita Chicago Style (17a ed.)

Niemela, V.S. Observations of Southern Wolf-Rayet Stars - I: The Spectroscopic Binary HD 90657.

Cita MLA (8a ed.)

Niemela, V.S. Observations of Southern Wolf-Rayet Stars - I: The Spectroscopic Binary HD 90657.