Gaya APA
Boettger, Till. (2014).
Threshold Spaces .
Germany:
Birkhäuser,.
Gaya Chicago
Boettger, Till.
Threshold Spaces.
Germany:
Birkhäuser,,
2014.
Text.
Gaya MLA
Boettger, Till.
Threshold Spaces.
Germany:
Birkhäuser,,
2014.
Text.
Gaya Turabian
Boettger, Till.
Threshold Spaces.
Germany:
Birkhäuser,,
2014.
Print.