		Piedras preciosas y joyas / por R. F. Symes y R. R. Harding by Symes, R. F Publication: Madrid :Altea 1991 Physical description: 64 p :il. col ;20cm Academic level: 5º-6º Primaria Availability: Items available for loan: CEIP de Pazos-Mestre García Niebla (1),
		Rocas y minerales / R.F. Symes by Symes, R. F Publication: Madrid :Altea 1990 Physical description: 64 p :il. col ;29cm Availability: Items available for loan: CEIP de Pazos-Mestre García Niebla (1),

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