APA (7th ed.) Citation

Viljoen, J. H. A. (1992). Lithostratigraphy of the Laingsburg Formation (Ecca Group). Geological Survey.

Chicago Style (17th ed.) Citation

Viljoen, J. H. A. Lithostratigraphy of the Laingsburg Formation (Ecca Group). Pretoria: Geological Survey, 1992.

MLA (9th ed.) Citation

Viljoen, J. H. A. Lithostratigraphy of the Laingsburg Formation (Ecca Group). Geological Survey, 1992.

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