APA Style
Bopp, Richard E., Smith, Linda C.. (2011).
Reference and information services :an introduction (4th ed.).
Santa Barbara, California:
Libraries Unlimited,.
Chicago Style
Bopp, Richard E., Smith, Linda C..
Reference and information services :an introduction.
4th ed.
Santa Barbara, California:
Libraries Unlimited,,
2011.
Text.
MLA Style
Bopp, Richard E., Smith, Linda C..
Reference and information services :an introduction.
4th ed.
Santa Barbara, California:
Libraries Unlimited,,
2011.
Text.
Turabian Style
Bopp, Richard E., Smith, Linda C..
Reference and information services :an introduction.
4th ed.
Santa Barbara, California:
Libraries Unlimited,,
2011.
Print.