Hopf, H. (1989). Differential geometry in the large seminar lectures, New York University, 1946 and Stanford University, 1956 / Heinz Hopf ; with a preface by S.S. Chern: Seminar lectures, New York University, 1946 and Stanford University, 1956 (2nd ed. [corr.].). Springer-Verlag. https://doi.org/10.1007/3-540-39482-6
Chicago Style (17th ed.) CitationHopf, Heinz. Differential Geometry in the Large Seminar Lectures, New York University, 1946 and Stanford University, 1956 / Heinz Hopf ; with a Preface by S.S. Chern: Seminar Lectures, New York University, 1946 and Stanford University, 1956. 2nd ed. [corr.]. Berlin ; New York: Springer-Verlag, 1989. https://doi.org/10.1007/3-540-39482-6.
MLA (9th ed.) CitationHopf, Heinz. Differential Geometry in the Large Seminar Lectures, New York University, 1946 and Stanford University, 1956 / Heinz Hopf ; with a Preface by S.S. Chern: Seminar Lectures, New York University, 1946 and Stanford University, 1956. 2nd ed. [corr.]. Springer-Verlag, 1989. https://doi.org/10.1007/3-540-39482-6.