Gems and Minerals

1973. № 434

1971. № 400,401,402,403,404,405,406,407,408,409,410,411

1970. № 388,389,390,391,397

1969. № 376,377,378,379,380,381,382,383,384,385,386,387

1968. № 364,365,366,367,368,369,370,371,372,373,374,375

1967. № 352

1966. № 340,341,342,343,344,345,346,347,348,349,350,351

1965. № 328,329,330,331,332,333,334,335,336,337,338,339