APA citiranje

van der Kruit, P. C. (2016). Jacobus Cornelius Kapteyn: Born Investigator of the Heavens. Springer.

Trích dẫn kiểu Chicago

van der Kruit, Pieter C. Jacobus Cornelius Kapteyn: Born Investigator of the Heavens. Springer, 2016.

MLA citiranje

van der Kruit, Pieter C. Jacobus Cornelius Kapteyn: Born Investigator of the Heavens. Springer, 2016.

Opozorilo: Ti citati niso vedno 100% točni.