Howard, V. (1974). 100 games for boys and girls. Zondervan.
Chicago Style aipamenaHoward, Vernon. 100 Games for Boys and Girls. Michigan: Zondervan, 1974.
MLA aipamenaHoward, Vernon. 100 Games for Boys and Girls. Zondervan, 1974.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.