Cita APA (7th ed.)
Pettersson, O. (1967). Mother Earth: An analysis of the mother earth. Concepts according to Albrecht Dieterich. Gleerup.
Cita Chicago (17th ed.)
Pettersson, Olof. Mother Earth: An Analysis of the Mother Earth. Concepts According to Albrecht Dieterich. Lund: Gleerup, 1967.
Cita MLA (9th ed.)
Pettersson, Olof. Mother Earth: An Analysis of the Mother Earth. Concepts According to Albrecht Dieterich. Gleerup, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.