APA Style
Petrova, Elka Kutova, Fagothey, Austin. ().
Pre-school education in Bulgaria .
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Chicago Style
Petrova, Elka Kutova, Fagothey, Austin.
Pre-school education in Bulgaria.
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MLA Style
Petrova, Elka Kutova, Fagothey, Austin.
Pre-school education in Bulgaria.
:
,
.
.
Turabian Style
Petrova, Elka Kutova, Fagothey, Austin.
Pre-school education in Bulgaria.
:
,
.
.