Krombholz, M. G. (2004). Identifying German Chinas 1840s - 1930s. Hobby House Press.
Chicagoスタイル(17版)引用形式Krombholz, Mary Gorham. Identifying German Chinas 1840s - 1930s. Grantsville, Maryland, USA: Hobby House Press, 2004.
MLA(8版)引用形式Krombholz, Mary Gorham. Identifying German Chinas 1840s - 1930s. Hobby House Press, 2004.
警告: この引用は必ずしも正確ではありません.