Não informado. (1993). Technical Education & Training Abstracts. Carfax Publishing.
Chicagoスタイル(17版)引用形式Não informado. Technical Education & Training Abstracts. Oxfordshire, Inglaterra: Carfax Publishing, 1993.
MLA(8版)引用形式Não informado. Technical Education & Training Abstracts. Carfax Publishing, 1993.
警告: この引用は必ずしも正確ではありません.