Gaya APA
Sturmey, S.G.. (1975).
Shipping economics : collected papers (text).
London:
Macmillan.
Gaya Chicago
Sturmey, S.G..
Shipping economics : collected papers.
text
London:
Macmillan,
1975.
.
Gaya MLA
Sturmey, S.G..
Shipping economics : collected papers.
text
London:
Macmillan,
1975.
.
Gaya Turabian
Sturmey, S.G..
Shipping economics : collected papers.
text
London:
Macmillan,
1975.
.