APA

flood j., . (2001). Mcgraw -Hill Reading. new york: mcgraw -hill.

Chicago

flood james, . 2001. Mcgraw -Hill Reading. new york: mcgraw -hill.

Harvard

flood j., . (2001). Mcgraw -Hill Reading. new york: mcgraw -hill.

MLA

flood james, . Mcgraw -Hill Reading. new york: mcgraw -hill. 2001.