APA Style
Kratochvil, Petr. ([s.a.]).
Crystals .
London:
Iliffe.
Chicago Style
Kratochvil, Petr.
Crystals.
London:
Iliffe,
[s.a.].
Book.
MLA Style
Kratochvil, Petr.
Crystals.
London:
Iliffe,
[s.a.].
Book.
Turabian Style
Kratochvil, Petr.
Crystals.
London:
Iliffe,
[s.a.].
Book.