Styl cytowania APA

Gregersen, H. M., Ffolliott, P. F., & Brooks, K. N. (2007). Integrated watershed management. CABI.

Styl cytowania Chicago

Gregersen, H. M., Peter F. Ffolliott, i Kenneth N. Brooks. Integrated Watershed Management. Wallingford, Oxforshire, UK ; Cambridge, MA: CABI, 2007.

Styl cytowania MLA

Gregersen, H. M., et al. Integrated Watershed Management. CABI, 2007.