APA Style
Lee, WR. (s.a.).
The dolphin english course teacher's book 4 .
London:
Oxford University.
Chicago Style
Lee, WR.
The dolphin english course teacher's book 4.
London:
Oxford University,
s.a..
Text.
MLA Style
Lee, WR.
The dolphin english course teacher's book 4.
London:
Oxford University,
s.a..
Text.
Turabian Style
Lee, WR.
The dolphin english course teacher's book 4.
London:
Oxford University,
s.a..
Print.