Lua APA (7ú heag.)

Não informado. (1968). Electronic applications, components and materials. Philips Gloeilampenfabrieken.

Lua i Stíl Chicago (17ú heag.)

Não informado. Electronic Applications, Components and Materials. Eindhoven, Holanda: Philips Gloeilampenfabrieken, 1968.

Lua MLA (8ú heag.)

Não informado. Electronic Applications, Components and Materials. Philips Gloeilampenfabrieken, 1968.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.