Gaya APA
Hudson, J.A.. (1976).
An impact penetrometer for assessing the cuttability of soft rocks .
:
TRRL.
Gaya Chicago
Hudson, J.A..
An impact penetrometer for assessing the cuttability of soft rocks.
:
TRRL,
1976.
Chart.
Gaya MLA
Hudson, J.A..
An impact penetrometer for assessing the cuttability of soft rocks.
:
TRRL,
1976.
Chart.
Gaya Turabian
Hudson, J.A..
An impact penetrometer for assessing the cuttability of soft rocks.
:
TRRL,
1976.
Chart.