Jephcoat, A., & Halliday, A. (2008). Origin and differentiation of the Earth: Past to present. Preface.
Cita Chicago (17th ed.)Jephcoat, A., i A. Halliday. Origin and Differentiation of the Earth: Past to Present. Preface. 2008.
Cita MLA (9th ed.)Jephcoat, A., i A. Halliday. Origin and Differentiation of the Earth: Past to Present. Preface. 2008.
Atenció: Aquestes cites poden no estar 100% correctes.