Penggayaan APA
Horst. (1964).
GAS Discharge tubes .
Netderland:
Philips Gloelampenfrabike.
Chicago Style
Horst.
GAS Discharge tubes.
Netderland:
Philips Gloelampenfrabike,
1964.
Text.
MLA Style
Horst.
GAS Discharge tubes.
Netderland:
Philips Gloelampenfrabike,
1964.
Text.
Turabian Style
Horst.
GAS Discharge tubes.
Netderland:
Philips Gloelampenfrabike,
1964.
Print.