APA (7th ed.) Citation

Helmy, M. W. (1999). Analysis of well performance with multiple shut-in periods. [publisher not identified].

Chicago Style (17th ed.) Citation

Helmy, Mohamed Wael. Analysis of Well Performance with Multiple Shut-in Periods. [Place of publication not identified]: [publisher not identified], 1999.

MLA (9th ed.) Citation

Helmy, Mohamed Wael. Analysis of Well Performance with Multiple Shut-in Periods. [publisher not identified], 1999.