Cita APA (7th ed.)
Cuadra, C. A. Impact of on-line retrieval services: A survey of users.
Cita Chicago (17th ed.)
Cuadra, Carlos A. Impact of On-line Retrieval Services: A Survey of Users.
Cita MLA (9th ed.)
Cuadra, Carlos A. Impact of On-line Retrieval Services: A Survey of Users.
Atenció: Aquestes cites poden no estar 100% correctes.