APA

Tillery B. W. E. D. E. a. F. C. R., Estelle Levetin and Karen MCMahon, . (2007). Integrated Science. USA: McGraw hill companies inc.

Chicago

Tillery Bill W Eldon D Enger and Frederick C Ross, Estelle Levetin and Karen MCMahon, . 2007. Integrated Science. USA: McGraw hill companies inc.

Harvard

Tillery B. W. E. D. E. a. F. C. R., Estelle Levetin and Karen MCMahon, . (2007). Integrated Science. USA: McGraw hill companies inc.

MLA

Tillery Bill W Eldon D Enger and Frederick C Ross, Estelle Levetin and Karen MCMahon, . Integrated Science. USA: McGraw hill companies inc. 2007.