Gaya APA
Tuck, R. (1981).
Natural rights theories, their origin and development. Cet. pertama 1979. .
London dsl:
Cambridge University Press.
Gaya MLA
Tuck, Richard..
"Natural rights theories, their origin and development. Cet. pertama 1979. ".
London dsl:
Cambridge University Press,
1981.
Buku.