Lendvay, O. (1980). Primer for agricultural libraries (2nd ed., rev. and enl.). Centre for Agricultural Publishing and Documentation.
Chicago Style aipamenaLendvay, Olga. Primer for Agricultural Libraries. 2nd ed., rev. and enl. Wageningen: Centre for Agricultural Publishing and Documentation, 1980.
MLA aipamenaLendvay, Olga. Primer for Agricultural Libraries. 2nd ed., rev. and enl. Centre for Agricultural Publishing and Documentation, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.