Cita APA (7th ed.)

Cowan, L. (1998). A First course in information technology tutor's manual. Univ. Pr.

Cita Chicago (17th ed.)

Cowan, Leslie. A First Course in Information Technology Tutor's Manual. Oxford: Univ. Pr, 1998.

Cita MLA (9th ed.)

Cowan, Leslie. A First Course in Information Technology Tutor's Manual. Univ. Pr, 1998.