https://www.amazon.com/China-Trade-Foster-Rhea-Dulles/dp/0404022162/ref=sr_1_1?crid=SPDT3RW3245I&dib=eyJ2IjoiMSJ9.v4q9U2zsv9SmnTBx91PFnGPAFAPrvpHckQcb_OMgz21oAMDpGFCaGFW-ZoX_CSEE7MMacAuJ6TeiAMM0EnWl41gaoIpZHBLPqVwnJzIGWP8.N6F9YxLSrPVF6ia6uK4xI9TeRbY0aErIYHqbXNwAAQ0&dib_tag=se&keywords=The+old+China+trade+by+Dulles&qid=1711476319&s=books&sprefix=the+old+china+trade+by+dulles%2Cstripbooks%2C103&sr=1-1