APA (7e ed.) Bronvermelding

BPI WORLDWIDE. QUESTIONS & ANSWERS INVENTIONS AND DISCOVERIES. BPI WORLDWIDE.

Chicago (17e ed.) Bronvermelding

BPI WORLDWIDE. QUESTIONS & ANSWERS INVENTIONS AND DISCOVERIES. UNITED KINGDOM: BPI WORLDWIDE.

MLA (9e ed.) Bronvermelding

BPI WORLDWIDE. QUESTIONS & ANSWERS INVENTIONS AND DISCOVERIES. BPI WORLDWIDE.

Let op: Deze citaties zijn niet altijd 100% accuraat.