Harvard University. Library. Houghton Library. (1967). The Houghton Library, 1942-1967: A selection of books and manuscripts in Harvard collections. Harvard COllege Library.
Citazione stile Chigago Style (17a edizione)Harvard University. Library. Houghton Library. The Houghton Library, 1942-1967: A Selection of Books and Manuscripts in Harvard Collections. Cambridge: Harvard COllege Library, 1967.
Citatione MLA (9a ed.)Harvard University. Library. Houghton Library. The Houghton Library, 1942-1967: A Selection of Books and Manuscripts in Harvard Collections. Harvard COllege Library, 1967.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.