Projects in chemistry for the secondary school /
Hayes, Megan.
Projects in chemistry for the secondary school / Megan Hayes. - London : Batsford, 1967. - 107 p. : ill.
Chemistry--Study and teaching (Secondary)
Projects in chemistry for the secondary school / Megan Hayes. - London : Batsford, 1967. - 107 p. : ill.
Chemistry--Study and teaching (Secondary)