APA Баримт

(1991). Report on the Preservation planning project: University of Pennsylvania libraries. Mc GRAW HILL book company.

Чикаго маягийн жагсаалт

Report on the Preservation Planning Project: University of Pennsylvania Libraries. September: Mc GRAW HILL book company, 1991.

MLA ишлэл

Report on the Preservation Planning Project: University of Pennsylvania Libraries. Mc GRAW HILL book company, 1991.

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