APA Style

Clarke, M. C, Pask, Raymond. (2009). The Blue Marble 1 : an Introduction to Geography . Singapore: Pearson Longman.

Chicago Style

Clarke, M. C, Pask, Raymond. The Blue Marble 1 : an Introduction to Geography. Singapore: Pearson Longman, 2009. Text.

MLA Style

Clarke, M. C, Pask, Raymond. The Blue Marble 1 : an Introduction to Geography. Singapore: Pearson Longman, 2009. Text.

Turabian Style

Clarke, M. C, Pask, Raymond. The Blue Marble 1 : an Introduction to Geography. Singapore: Pearson Longman, 2009. Print.