ISBN-13: 9789401185578 / Angielski / Miękka / 1966 / 172 str.
of the research for the book, as well as a good bit of its writing, Much was done in two libraries, The University Library, Berkeley, and the Bodleian Library, Oxford. Members of the staffs of both libraries, by their courtesy and helpfulness, lightened immeasurably the task of my research.