Raabe, H. J., & Koetzle, H. (2014). 990 faces: 241-270 ; Brandenburg-Gate x Hans Jürgen Raabe. Meralon International LtD..
Chicagoスタイル(17版)引用形式Raabe, Hans Jürgen, , Hans-Michael Koetzle. 990 Faces: 241-270 ; Brandenburg-Gate X Hans Jürgen Raabe. Ilford, Essex: Meralon International LtD., 2014.
MLA(8版)引用形式Raabe, Hans Jürgen, , Hans-Michael Koetzle. 990 Faces: 241-270 ; Brandenburg-Gate X Hans Jürgen Raabe. Meralon International LtD., 2014.
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