Cita APA (7th ed.)

Geyh, M. A., & Schleicher, H. (1990). Absolute Age Determination: Physical and Chemical Dating Methods and Their Application. Springer-Verlag.

Cita Chicago (17th ed.)

Geyh, Mebus A., i Helmut Schleicher. Absolute Age Determination: Physical and Chemical Dating Methods and Their Application. Berlin ; New York: Springer-Verlag, 1990.

Cita MLA (9th ed.)

Geyh, Mebus A., i Helmut Schleicher. Absolute Age Determination: Physical and Chemical Dating Methods and Their Application. Springer-Verlag, 1990.