APA (7th ed.) Citation

J, S. P., & P, Z. L. (2001). Backfilling underground voids (7.).

Chicago Style (17th ed.) Citation

J, STEPHENS PATRICK, and ZENARI LLOYD P. Backfilling Underground Voids. 7. 2001.

MLA (9th ed.) Citation

J, STEPHENS PATRICK, and ZENARI LLOYD P. Backfilling Underground Voids. 7. 2001.

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