Gaya APA
Barnes, Ralph M.. (1967).
Motion and time study (4th ed.).
Tokyo:
Tuttle.
Gaya Chicago
Barnes, Ralph M..
Motion and time study.
4th ed.
Tokyo:
Tuttle,
1967.
Text.
Gaya MLA
Barnes, Ralph M..
Motion and time study.
4th ed.
Tokyo:
Tuttle,
1967.
Text.
Gaya Turabian
Barnes, Ralph M..
Motion and time study.
4th ed.
Tokyo:
Tuttle,
1967.
Print.