APA-referens (7:e uppl.)

Akwuba, G. K., & Ako, B. D. (2014). A Comparative Study of Resistivity Sounding Curves from Two Drainage Areas of Kafanchan, Kaduna State. Obafemi Awolowo University.

Chicago-referens (17:e uppl.)

Akwuba, Godwin Kingsley, och B. D. Ako. A Comparative Study of Resistivity Sounding Curves from Two Drainage Areas of Kafanchan, Kaduna State. Obafemi Awolowo University, 2014.

MLA-referens (9:e uppl.)

Akwuba, Godwin Kingsley, och B. D. Ako. A Comparative Study of Resistivity Sounding Curves from Two Drainage Areas of Kafanchan, Kaduna State. Obafemi Awolowo University, 2014.

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