Furgal, J., & Furgal, H. (1973). Unite: Grade 4 parent handbook. Benziger.
Chicago Style aipamenaFurgal, Jean, and Henry Furgal. Unite: Grade 4 Parent Handbook. Beverly Hills, Calif.: Benziger, 1973.
MLA aipamenaFurgal, Jean, and Henry Furgal. Unite: Grade 4 Parent Handbook. Benziger, 1973.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.