Cita APA (7th ed.)

Lankes, R. D., & Nast, P. (2008). Virtual reference service: From competencies to assessment. Neal-Schuman Publishers.

Cita Chicago (17th ed.)

Lankes, R. David, i Philip Nast. Virtual Reference Service: From Competencies to Assessment. New York: Neal-Schuman Publishers, 2008.

Cita MLA (9th ed.)

Lankes, R. David, i Philip Nast. Virtual Reference Service: From Competencies to Assessment. Neal-Schuman Publishers, 2008.