Jeffers, A. (1998). Safe as houses: Alex Jeffers (5. Auflage.). GMP.
Chicagoスタイル(17版)引用形式Jeffers, Alex. Safe as Houses: Alex Jeffers. 5. Auflage. Swaffham: GMP, 1998.
MLA(8版)引用形式Jeffers, Alex. Safe as Houses: Alex Jeffers. 5. Auflage. GMP, 1998.
警告: この引用は必ずしも正確ではありません.