एपीए उद्धरण

(1976). Forty years of enterprise. Eindhoven: N.V. Philips' Gloeilampenfabrieken.

शिकागो स्टाइल उद्धरण

Forty Years of Enterprise. Eindhoven: N.V. Philips' Gloeilampenfabrieken, 1976.

एमएलए उद्धरण

Forty Years of Enterprise. Eindhoven: N.V. Philips' Gloeilampenfabrieken, 1976.