APA

Blandchard K., Root C., . (2006). Four Your Information. : Pearson Longman.

Chicago

Blandchard Karen, Root Christine, . 2006. Four Your Information. : Pearson Longman.

Harvard

Blandchard K., Root C., . (2006). Four Your Information. : Pearson Longman.

MLA

Blandchard Karen, Root Christine, . Four Your Information. : Pearson Longman. 2006.