Heitshu, S. (1992). Preservation as a Cooperative Effort: Intra- and Interinstitutional Activities.
Citazione stile Chigago Style (17a edizione)Heitshu, Sara. Preservation as a Cooperative Effort: Intra- and Interinstitutional Activities. 1992.
Citatione MLA (9a ed.)Heitshu, Sara. Preservation as a Cooperative Effort: Intra- and Interinstitutional Activities. 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.