Spitzing, G. (1974). The photoguide to enlarging. Cacho Hermanos.
芝加哥风格引文Spitzing, Gunter. The Photoguide to Enlarging. Mandaluyong, Rizal: Cacho Hermanos, 1974.
MLA引文Spitzing, Gunter. The Photoguide to Enlarging. Cacho Hermanos, 1974.
警告：这些引文格式不一定是100％准确.