APA Citation

Markham, R., & Herren, H. (1990). . Ibadan (Nigeria):.

Chicago Style Citation

Markham, R.H., and H.R Herren. . Ibadan (Nigeria):, 1990.

MLA Citation

Markham, R.H., and H.R Herren. . Ibadan (Nigeria):, 1990.

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