Gaya APA
LEYBOLD, H. (1986).
New Physics Leaflets for Colleges And Universities Volume 1 (1st ed).
Köln:
Leybold Heraeus.
Gaya MLA
LEYBOLD, Heraeus.
"New Physics Leaflets for Colleges And Universities Volume 1".
1st ed
Köln:
Leybold Heraeus,
1986.
Printed.