May 3 (Reuters) - Westfield Corp WFD.AX :
* QTRLY SPECIALTY SALES OF $748 PSF, UP 7.1 PERCENT
* UNDERTAKING PRE-DEVELOPMENT WORK ON $6.1 BILLION IN 2018-19
* PROPOSAL TO COMBINE WESTFIELD AND UNIBAIL-RODAMCO CONTINUES TO PROGRESS
May 3 (Reuters) - Westfield Corp WFD.AX :
* QTRLY SPECIALTY SALES OF $748 PSF, UP 7.1 PERCENT
* UNDERTAKING PRE-DEVELOPMENT WORK ON $6.1 BILLION IN 2018-19
* PROPOSAL TO COMBINE WESTFIELD AND UNIBAIL-RODAMCO CONTINUES TO PROGRESS