Gaya APA
Maceachern, S. (2004).
Student Encyclopedia Volume 14 Pyramid - Scientific Instruments (14).
cambridge, UK:
GROLIER DANBURY,CONNECTICUT.
Gaya MLA
Maceachern, Sally.
"Student Encyclopedia Volume 14 Pyramid - Scientific Instruments".
14
cambridge, UK:
GROLIER DANBURY,CONNECTICUT,
2004.
Text.