APA (7th ed.) Citation

Adam Matthew Digital (Firm). (2020). RDF (Radio direction finding): Use in Western Approaches against aircraft and U-Boats. Adam Matthew Digital.

Chicago Style (17th ed.) Citation

Adam Matthew Digital (Firm). RDF (Radio Direction Finding): Use in Western Approaches Against Aircraft and U-Boats. Marlborough, Wiltshire: Adam Matthew Digital, 2020.

MLA (9th ed.) Citation

Adam Matthew Digital (Firm). RDF (Radio Direction Finding): Use in Western Approaches Against Aircraft and U-Boats. Adam Matthew Digital, 2020.