National association of secondary-school principals. (1917). Bulletin. v. 1- (no. [1]--); 1917-. s.n.
Chicagoスタイル(17版)引用形式National association of secondary-school principals. Bulletin. V. 1- (no. [1]--); 1917-. [Washington], etc: s.n, 1917.
MLA(9版)引用形式National association of secondary-school principals. Bulletin. V. 1- (no. [1]--); 1917-. s.n, 1917.
警告: この引用は必ずしも正確ではありません.