APA Style
Spyri, Johanna. (1993).
Heidi (First).
London:
Magna Books.
Chicago Style
Spyri, Johanna.
Heidi.
First
London:
Magna Books,
1993.
printed.
MLA Style
Spyri, Johanna.
Heidi.
First
London:
Magna Books,
1993.
printed.
Turabian Style
Spyri, Johanna.
Heidi.
First
London:
Magna Books,
1993.
printed.