Porter, Hal
University of Queensland Press, 1987
Buku Teks
Lord, Mary, author
Oxford University, 1974
Buku Teks
Steele, Peter, author
Oxford University , 1992
Buku Teks
Porter, Hal, 1911-1984, author
Angus & Robertson, 1966
Buku Teks
Marshall, Alan, 1902-1984, author
Chesire, 1963
Buku Teks