APA Style
Ockerman, Herbert W.. ().
Encyclopedia of Physical science and technology 1991 yearbook .
:
.
Chicago Style
Ockerman, Herbert W..
Encyclopedia of Physical science and technology 1991 yearbook.
:
,
.
.
MLA Style
Ockerman, Herbert W..
Encyclopedia of Physical science and technology 1991 yearbook.
:
,
.
.
Turabian Style
Ockerman, Herbert W..
Encyclopedia of Physical science and technology 1991 yearbook.
:
,
.
.