APA (7th ed.) Citation

Dziewulski, W., Grudzińska, S., Burnicki, A., & Tomasik, H. (1956). Visual and photographic observations of the variable stars. Societatis Scientiarum.

Chicago Style (17th ed.) Citation

Dziewulski, Władysław, Stefania Grudzińska, Alojzy Burnicki, and Halina Tomasik. Visual and Photographic Observations of the Variable Stars. Toruń: Societatis Scientiarum, 1956.

MLA (9th ed.) Citation

Dziewulski, Władysław, et al. Visual and Photographic Observations of the Variable Stars. Societatis Scientiarum, 1956.