Williams, T. R. (2011). Advancing variable star astronomy: The centennial history of the American association of variable star observers. Cambridge University.
Chicago-стиль цитированияWilliams, Thomas R. Advancing Variable Star Astronomy: The Centennial History of the American Association of Variable Star Observers. Cambridge: Cambridge University, 2011.
MLA-цитированиеWilliams, Thomas R. Advancing Variable Star Astronomy: The Centennial History of the American Association of Variable Star Observers. Cambridge University, 2011.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.