Roy, A. E., & Clarke, D. (1977). Astronomy: Principles and practice. Adam Hilger.
シカゴスタイル引用形Roy, A E., , D. Clarke. Astronomy: Principles and Practice. Bristol: Adam Hilger, 1977.
MLA引用形式Roy, A E., , D. Clarke. Astronomy: Principles and Practice. Adam Hilger, 1977.
警告: この引用は必ずしも正確ではありません.