APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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