Dokumentuaren aipamena

APA aipamena

Hữu Ngọc. (2006). Cảnh đẹp thiên nhiên Việt Nam =: Vietnam's natural beauty. Hà Nội: Thế Giới.

Chicago Style aipamena

Hữu Ngọc. Cảnh đẹp Thiên Nhiên Việt Nam =: Vietnam's Natural Beauty. Hà Nội: Thế Giới, 2006.

MLA aipamena

Hữu Ngọc. Cảnh đẹp Thiên Nhiên Việt Nam =: Vietnam's Natural Beauty. Hà Nội: Thế Giới, 2006.

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