APA-viite (7. p.)

Owor, F. (2015). Application of Geographic Information System to Solidwaste Management in Port Harcourt City.

Chicago-viite (17. p.)

Owor, Florence. Application of Geographic Information System to Solidwaste Management in Port Harcourt City. 2015.

MLA-viite (9. p.)

Owor, Florence. Application of Geographic Information System to Solidwaste Management in Port Harcourt City. 2015.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.