APA (7th ed.) Citation

Mahmood, K. (1990). Porosity gradients in marine sediments. [publisher not identified].

Chicago Style (17th ed.) Citation

Mahmood, Khalid. Porosity Gradients in Marine Sediments. [Place of publication not identified]: [publisher not identified], 1990.

MLA (9th ed.) Citation

Mahmood, Khalid. Porosity Gradients in Marine Sediments. [publisher not identified], 1990.

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