Ritchie, W., 1951. Ground Slates: Eskimo of Indian?. Pennsylvania Archaeologist 21, 46-52.

Ritchie, W., 1956. Each to the Other. American Antiquity 22, 169-170. doi:10.2307/276820

Ritchie, W., 1950. Another Probable Case of Bear Ceremonialism in New York. American Antiquity 15, 246-249. doi:10.2307/276766

Ritchie, W., 1956. Indian History of New York State, Part III, The Algonkian Tribes. New York State Museum Education LeafletThe University of the State of New York, Albany, New York.

Ritchie, W., 1950. Indian History of New York State, Part I, Pre-Iroquoian Cultures. New York State Museum Education LeafletThe University of the State of New York, Albany, New York.

Ritchie, W., 1955. The Northern Burial Cult. Pennsylvania Archaeologist 25, 45-49.

Ritchie, W., 1950. The Present Status of Ceramic Typology in New York State. Eastern States Archaeological Federation Bulletin 9, 10.

Ritchie, W., 1961. A Typology and Nomenclature for New York Projectile Points. New York State Museum BulletinThe University of the State of New York, Albany, New Jersey.

Ritchie, W., Dragoo, D., 1960. The Eastern Dispersal of Adena. New York State Museum BulletinThe University of the State of New York, Albany, New York.

Ritchie, W., 1959. Archaeology: Western Hemisphere. Encyclopedia Britannica, Book of the Year 1959, 50-52.