Cita APA

Groten, E. (1979). Geodesy and the earth`s gravaty field. Bonn: Dummler.

Citación estilo Chicago

Groten, Erwin. Geodesy and the Earth`s Gravaty Field. Bonn: Dummler, 1979.

Cita MLA

Groten, Erwin. Geodesy and the Earth`s Gravaty Field. Bonn: Dummler, 1979.