Cita APA

Pomeroy, L. R. (1974). Cycles of essential elements. Hutchinson.

Chicago Edition Citation

Pomeroy, Lawrence R. Cycles of Essential Elements. Hutchinson, 1974.

Cita MLA

Pomeroy, Lawrence R. Cycles of Essential Elements. Hutchinson, 1974.

Atenció: Aquestes cites poden no estar 100% correctes.