APA (7th ed.) Citation

Helander, D. P. (1983). Fundamental of formation evaluation. Oil & Gas Consultant International.

Chicago Style (17th ed.) Citation

Helander, Donald P. Fundamental of Formation Evaluation. Oil & Gas Consultant International, 1983.

MLA (8th ed.) Citation

Helander, Donald P. Fundamental of Formation Evaluation. Oil & Gas Consultant International, 1983.

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