APA

Van Zyl D. J. A., Ahutchison I. P. G. & Akiel J. E. (1988). Introduction to Evaluation, Desing and operation of precious metal heap leaching projects. Colorado: Society of Mining Engineers.

Chicago

Van Zyl Dirk J A, Ahutchison Ian P G and Akiel Jean E. 1988. Introduction to Evaluation, Desing and operation of precious metal heap leaching projects. Colorado: Society of Mining Engineers.

Harvard

Van Zyl D. J. A., Ahutchison I. P. G. and Akiel J. E. (1988). Introduction to Evaluation, Desing and operation of precious metal heap leaching projects. Colorado: Society of Mining Engineers.

MLA

Van Zyl Dirk J A, Ahutchison Ian P G and Akiel Jean E. Introduction to Evaluation, Desing and operation of precious metal heap leaching projects. Colorado: Society of Mining Engineers. 1988.