단행본

Ryan's Math Adventure . 1 , Numbers Smaller than 20

단체저자명

WeDu Communications 

서명/저자사항

Ryan's Math Adventure.by WeDu Communications 

발행사항

Seoul :WeDu communications,2018 

형태사항

184 p. :col. ill ;26 cm 

비통어주제어

math, adventure, edutainment comics,