APA-viite

Tetley, L., & Calcutt, D. Electronic aids to navigation: :position fixing.

Chicago-tyylinen lähdeviittaus

Tetley, L., ja D. Calcutt. Electronic Aids to Navigation: :position Fixing. London.

MLA-viite

Tetley, L., ja D. Calcutt. Electronic Aids to Navigation: :position Fixing.