APA Style
Spyri, Johanna. (2015).
Heidi .
[s.l.]:
Erik Publishing.
Chicago Style
Spyri, Johanna.
Heidi.
[s.l.]:
Erik Publishing,
2015.
Text.
MLA Style
Spyri, Johanna.
Heidi.
[s.l.]:
Erik Publishing,
2015.
Text.
Turabian Style
Spyri, Johanna.
Heidi.
[s.l.]:
Erik Publishing,
2015.
Print.