APA (7e ed.) Bronvermelding

KOLEY,RUBY. (2016). CONNECT WITH SCIENCE - BOOK 4. OXFORD UNIVERSITY PRESS.

Chicago (17e ed.) Bronvermelding

KOLEY,RUBY. CONNECT WITH SCIENCE - BOOK 4. NEW DELHI: OXFORD UNIVERSITY PRESS, 2016.

MLA (9e ed.) Bronvermelding

KOLEY,RUBY. CONNECT WITH SCIENCE - BOOK 4. OXFORD UNIVERSITY PRESS, 2016.