APA (7th ed.) Citation

Heck, B., & Seitz, K. (1993). Effects of non-linearity in the geodetic boundary value problems. Beck.

Chicago Style (17th ed.) Citation

Heck, Bernhard, and Kurt Seitz. Effects of Non-linearity in the Geodetic Boundary Value Problems. München: Beck, 1993.

MLA (9th ed.) Citation

Heck, Bernhard, and Kurt Seitz. Effects of Non-linearity in the Geodetic Boundary Value Problems. Beck, 1993.