APA(7版)引用形式
Heertjes, N. (1942). Petrological investigations of the coal-measures sediments of South-Limburg (The Netherlands). Van Aelst.
Chicagoスタイル(17版)引用形式
Heertjes, Nicolaas. Petrological Investigations of the Coal-measures Sediments of South-Limburg (The Netherlands). Maastricht: Van Aelst, 1942.
MLA(9版)引用形式
Heertjes, Nicolaas. Petrological Investigations of the Coal-measures Sediments of South-Limburg (The Netherlands). Van Aelst, 1942.
警告: この引用は必ずしも正確ではありません.