Cita APA (7th ed.)

Enders, K., & Siebert, H. (1984). The Resource sector in an open economy. Springer-Verlag.

Cita Chicago (17th ed.)

Enders, Klaus-Stefan, i Horst Siebert. The Resource Sector in an Open Economy. Berlin: Springer-Verlag, 1984.

Cita MLA (9th ed.)

Enders, Klaus-Stefan, i Horst Siebert. The Resource Sector in an Open Economy. Springer-Verlag, 1984.