APA (7th ed.) Citation

Yerima, B. P. K. (1983). Weathering and genesis of volcanic ash-influenced vertisols and vertic-like soils of El Salvador. [publisher not identified].

Chicago Style (17th ed.) Citation

Yerima, Bernard Palmer Kfuban. Weathering and Genesis of Volcanic Ash-influenced Vertisols and Vertic-like Soils of El Salvador. [Place of publication not identified]: [publisher not identified], 1983.

MLA (9th ed.) Citation

Yerima, Bernard Palmer Kfuban. Weathering and Genesis of Volcanic Ash-influenced Vertisols and Vertic-like Soils of El Salvador. [publisher not identified], 1983.