Gaya APA
Jehu, V.J.. (1971).
Swingaway helmet testing apparatus .
:
TRRL.
Gaya Chicago
Jehu, V.J..
Swingaway helmet testing apparatus.
:
TRRL,
1971.
Chart.
Gaya MLA
Jehu, V.J..
Swingaway helmet testing apparatus.
:
TRRL,
1971.
Chart.
Gaya Turabian
Jehu, V.J..
Swingaway helmet testing apparatus.
:
TRRL,
1971.
Chart.