SPYRI, J. (2010). JUNIOR ILLUSTRATED CLASSICS: HEIDI. SHREE BOOK CENTRE.
芝加哥风格引文SPYRI, JOHANNA. JUNIOR ILLUSTRATED CLASSICS: HEIDI. SHREE BOOK CENTRE, 2010.
MLA引文SPYRI, JOHANNA. JUNIOR ILLUSTRATED CLASSICS: HEIDI. SHREE BOOK CENTRE, 2010.
警告：这些引文格式不一定是100％准确.