APA (7e ed.) Bronvermelding

ROBSON, P. (2011). GEOGRAPHY FOR FUN - MOUNTAINS AND OUR MOVING EARTH. S CHAND PUB.

Chicago (17e ed.) Bronvermelding

ROBSON, PAM. GEOGRAPHY FOR FUN - MOUNTAINS AND OUR MOVING EARTH. S CHAND PUB, 2011.

MLA (9e ed.) Bronvermelding

ROBSON, PAM. GEOGRAPHY FOR FUN - MOUNTAINS AND OUR MOVING EARTH. S CHAND PUB, 2011.

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