APA (7th ed.) Citation

(1979). Birthday calendar: 50 year IFLA. [s.n.].

Chicago Style (17th ed.) Citation

Birthday Calendar: 50 Year IFLA. [S.l.]: [s.n.], 1979.

MLA (9th ed.) Citation

Birthday Calendar: 50 Year IFLA. [s.n.], 1979.

Warning: These citations may not always be 100% accurate.