Roberts, H. (1965). Intermediate book - keeping exercises. Edaward Arnold.
Chicago Style aipamenaRoberts, H.C. Intermediate Book - Keeping Exercises. London: Edaward Arnold, 1965.
MLA aipamenaRoberts, H.C. Intermediate Book - Keeping Exercises. Edaward Arnold, 1965.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.