APA-viite

Ritson, C. (1977). Agricultural economics: Principles and Policy. Cros by Lockwood staples.

Chicago-tyylinen lähdeviittaus

Ritson, Christopher. Agricultural Economics: Principles and Policy. London: Cros by Lockwood staples, 1977.

MLA-viite

Ritson, Christopher. Agricultural Economics: Principles and Policy. Cros by Lockwood staples, 1977.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.