APA (7th ed.) Citation

Pomeroy, L. R. Cycles of essential elements. Dowden, Hutchinson.

Chicago Style (17th ed.) Citation

Pomeroy, Lawrence R. Cycles of Essential Elements. Stroudsburg, Pennsylvania: Dowden, Hutchinson.

MLA (9th ed.) Citation

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