APA (7th ed.) Citation

Piper, D. Z., & Williamson, M. E. (1977). Composition of ferromanganese nodules from the Pacific. PANGAEA.

Chicago Style (17th ed.) Citation

Piper, David Z., and M E. Williamson. Composition of Ferromanganese Nodules from the Pacific. PANGAEA, 1977.

MLA (9th ed.) Citation

Piper, David Z., and M E. Williamson. Composition of Ferromanganese Nodules from the Pacific. PANGAEA, 1977.

Warning: These citations may not always be 100% accurate.