Gaya APA
Schofield, J.
(2014).
Presentation Skills in 7 Simple Steps
(
Cet. 1)
.
London:
HarperCollins.
Gaya MLA
Schofield, James.
"Presentation Skills in 7 Simple Steps".
Cet. 1
London:
HarperCollins,
2014.
Text.