Cita APA (7a ed.)

Perrins, R. (1972). Practical Book-keeping And Commercial Knowledge R.e.g. Perrins. HFJ.

Cita Chicago Style (17a ed.)

Perrins, R.E.G. Practical Book-keeping And Commercial Knowledge R.e.g. Perrins. HFJ, 1972.

Cita MLA (8a ed.)

Perrins, R.E.G. Practical Book-keeping And Commercial Knowledge R.e.g. Perrins. HFJ, 1972.