APA (7e ed.) Bronvermelding

Open University. Graphs, networks and design. Planarity and colouring. Open University Press.

Chicago (17e ed.) Bronvermelding

Open University. Graphs, Networks and Design. Planarity and Colouring. Milton Keynes: Open University Press.

MLA (8e ed.) Bronvermelding

Open University. Graphs, Networks and Design. Planarity and Colouring. Open University Press.

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