Cita APA

DUFF MCL D. HOLMES PRINCIPLES OF PHYSICAL GEOLOGY. ELBS.

Chicago Edition Citation

DUFF MCL D. HOLMES PRINCIPLES OF PHYSICAL GEOLOGY. ELBS.

Cita MLA

DUFF MCL D. HOLMES PRINCIPLES OF PHYSICAL GEOLOGY. ELBS.

Atenció: Aquestes cites poden no estar 100% correctes.