APA

International Federation for Information Processing, . (1971). IFIP congress series. Amsterdam [u.a.]: North-Holland.

Chicago

International Federation for Information Processing, . 1971. IFIP congress series. Amsterdam [u.a.]: North-Holland.

Harvard

International Federation for Information Processing, . (1971). IFIP congress series. Amsterdam [u.a.]: North-Holland.

MLA

International Federation for Information Processing, . IFIP congress series. Amsterdam [u.a.]: North-Holland. 1971.