Sen, A. K. (1969). Secretarial and administrative practice. Academic publishers.
Chicago Edition CitationSen, Amar Kumar. Secretarial and Administrative Practice. Calcutta: Academic publishers, 1969.
ציטוט MLASen, Amar Kumar. Secretarial and Administrative Practice. Academic publishers, 1969.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.