21
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22
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24
by Easterling, K. E.
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25
by Higgins, Raymond Aurelius.
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26
by Blaskett, D. R., 1915-
Published 1990
27
by Wright, Peter A.
Published 1982
28
by Manz, Charles C.
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30
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Published 1967
31
by Blommers, Paul J.,, 1910-
Published 1977
32
by Llewellyn, D. T.
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33
Published 1990
34
by Rosenqvist, Terkel.
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35
by Ritcey, G. M.
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36
by Love, Leonard Carl,, 1921-
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38
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by Samsul Bahar Sadli
Published 1997