A study of accomodation using an infra-red optometer
SIGLE / LD:D45319/83 / BLDSC - British Library Document Supply Centre / GB / United Kingdom
SIGLE / LD:D45319/83 / BLDSC - British Library Document Supply Centre / GB / United Kingdom
United Kingdom
United Kingdom
SIGLE / Available from British Library Lending Division - LD:9091.9F(AERE-R--7613) / BLDSC - British Library Document Supply Centre / GB / United Kingdom
SIGLE / Available from British Library Document Supply Centre- DSC:qX20-5302 / BLDSC - British Library Document Supply Centre / GB / United Kingdom
United Kingdom
SIGLE / Available from British Library Document Supply Centre- DSC:D71055/86 / BLDSC - British Library Document Supply Centre / GB / United Kingdom
United Kingdom
Spain
Spain