For your questions about new book requests:
E-mail: saglama@metu.edu.tr
Phone: (+90.312)2102790 / (+90.312)2102783

For your questions about journal subscriptions, journal donations, and journal exchanges:
E-mail: referans@metu.edu.tr
Phone: (+90.312)2103619

For your questions about electronic resources
E-mail: referans@metu.edu.tr
Phone: (+90.312)2102786 / (+90.312)2102798

For your questions about reference book collection and thesis:
E-mail: referans@metu.edu.tr
Phone: (+90.312)2102793

For your questions about Inter Library Loans:
E-mail: ill@metu.edu.tr
Phone: (+90.312)2102791

For your questions about audio visual materials:
E-mail: lib-hot-line@metu.edu.tr
Phone: (+90.312)2102789

For your questions about book donations:
E-mail: gift@metu.edu.tr
Phone: (+90.312)2102783

For your questions about the books unavailable although seems like available in the library catalogue:
E-mail: lib-hot-line@metu.edu.tr
Phone: (+90.312)2102787 / (+90.312)2102797

If you still don't know where to send your question, please use the General Inquiry Form.