Weller, J. M. (1960). Stratigraphic principles and practice. Universal Book Stall.
シカゴスタイル引用形Weller, J. Marvin. Stratigraphic Principles and Practice. Delhi: Universal Book Stall, 1960.
MLA引用形式Weller, J. Marvin. Stratigraphic Principles and Practice. Universal Book Stall, 1960.
警告: この引用は必ずしも正確ではありません.