Oxford University Press Sivumäärä: 404 sivua Asu: Pehmeäkantinen kirja Painos: Paperback Julkaisuvuosi: 1983, 24.11.1983 (lisätietoa) Kieli: Englanti
These essays, which cover a wide range of topics, were written by Professor Hart between 1953 and 1981, and first appeared in a variety of different books and journals.