Παραπομπή σε μορφή APA (7η εκδ.)

Krupkova, O., & Krupkova, O. (1997). The Geometry of Ordinary Variational Equations (1st ed. 1997.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/BFb0093438

Παραπομπή σε μορφή Chicago (17η εκδ.)

Krupkova, Olga, και Olga Krupkova. The Geometry of Ordinary Variational Equations. 1st ed. 1997. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 1997. https://doi.org/10.1007/BFb0093438.

Παραπομπή σε μορφή MLA (8th εκδ.)

Krupkova, Olga, και Olga Krupkova. The Geometry of Ordinary Variational Equations. 1st ed. 1997. Springer Berlin Heidelberg : Imprint: Springer, 1997. https://doi.org/10.1007/BFb0093438.