Gaya APA
Florio, A.E., Alles, W.F., Stafford, G.T.. (1979).
Safety education (4th ed).
Singapore:
McGraw-Hill.
Gaya Chicago
Florio, A.E., Alles, W.F., Stafford, G.T..
Safety education.
4th ed
Singapore:
McGraw-Hill,
1979.
Text.
Gaya MLA
Florio, A.E., Alles, W.F., Stafford, G.T..
Safety education.
4th ed
Singapore:
McGraw-Hill,
1979.
Text.
Gaya Turabian
Florio, A.E., Alles, W.F., Stafford, G.T..
Safety education.
4th ed
Singapore:
McGraw-Hill,
1979.
Print.