APA
Franceys R., Pickford J., Reed R. & World Health Organization. (1992). A guide to the development of on-site sanitation: R. Franceys, J. Pickford & R. Reed. Geneva: WHO.
Chicago
Franceys R, Pickford John, Reed R and World Health Organization. 1992. A guide to the development of on-site sanitation: R. Franceys, J. Pickford & R. Reed. Geneva: WHO.
Harvard
Franceys R., Pickford J., Reed R. and World Health Organization. (1992). A guide to the development of on-site sanitation: R. Franceys, J. Pickford & R. Reed. Geneva: WHO.
MLA
Franceys R, Pickford John, Reed R and World Health Organization. A guide to the development of on-site sanitation: R. Franceys, J. Pickford & R. Reed. Geneva: WHO. 1992.