APA
Daynes H A, Johnson E B & Scott J R. (1930). Instrument for testing hardness and permanent set of rubber and for measuring thickness of test pieces. : IRI Transactions.
Chicago
Daynes H A, Johnson E B and Scott J R. 1930. Instrument for testing hardness and permanent set of rubber and for measuring thickness of test pieces. : IRI Transactions.
Harvard
Daynes H A, Johnson E B and Scott J R. (1930). Instrument for testing hardness and permanent set of rubber and for measuring thickness of test pieces. : IRI Transactions.
MLA
Daynes H A, Johnson E B and Scott J R. Instrument for testing hardness and permanent set of rubber and for measuring thickness of test pieces. : IRI Transactions. 1930.