Cita APA (7th ed.)

Blackburn, N. D. (1971). Legal secretaryship. Prentice-Hall.

Cita Chicago (17th ed.)

Blackburn, Norma Davis. Legal Secretaryship. Englewood Cliffs, New Jersey: Prentice-Hall, 1971.

Cita MLA (9th ed.)

Blackburn, Norma Davis. Legal Secretaryship. Prentice-Hall, 1971.