APA

Ibbotson (Mark), . (112). Cambridge English for Engineering. : Cambridge University Press.

Chicago

Ibbotson (Mark), . 112. Cambridge English for Engineering. : Cambridge University Press.

Harvard

Ibbotson (Mark), . (112). Cambridge English for Engineering. : Cambridge University Press.

MLA

Ibbotson (Mark), . Cambridge English for Engineering. : Cambridge University Press. 112.