World encyclopedia of police forces and correctional systems

Available for University of the Philippines Diliman via Gale Virtual Reference Library. Click here to access

The Gale encyclopedia of cancer a guide to cancer and its treatments

Available for University of the Philippines Diliman via Gale Virtual Reference Library. Click here to access

An A to Z of ancient Egypt by Cox, Simon 1966-

Encyclopedia of social theory

The Greenhaven encyclopedia of paranormal phenomena by Netzley, Patricia D.

Encyclopedia of human geography

Available for the University of the Philippines System via SAGE Knowledge. Click here to access

The complete illustrated encyclopedia of birds of the world by Alderton, David 1956-

The concise nature encyclopedia by Burnie, David

Encyclopedia of world religions

Philip's world encyclopedia