APA

pedrotti f. l., . (1993). introduction. new jersey: prentice - hill.

Chicago

pedrotti frank l, . 1993. introduction. new jersey: prentice - hill.

Harvard

pedrotti f. l., . (1993). introduction. new jersey: prentice - hill.

MLA

pedrotti frank l, . introduction. new jersey: prentice - hill. 1993.