Dierickx, H.
Reference manual for machine readable bibliographic descriptions / compiled and edited by H. Dierickx and A. Hopkinson [for the] Unisist International Centre for Bibliographic Descriptions (UNIBID) - 2nd ed. rev. - Paris : Unesco, 1981 - v, [341] p.
PGI /81 /WS /22
Machine-readable bibliographic data -- Handbooks, manuals, etc.
Reference manual for machine readable bibliographic descriptions / compiled and edited by H. Dierickx and A. Hopkinson [for the] Unisist International Centre for Bibliographic Descriptions (UNIBID) - 2nd ed. rev. - Paris : Unesco, 1981 - v, [341] p.
PGI /81 /WS /22
Machine-readable bibliographic data -- Handbooks, manuals, etc.