Kovács-Endrődy, É. (1991). On the Late Permian age of Ecca Glossopteris floras in the Transvaal Provivince: With a key to and description of twenty five Glossopteris species.
Chicago Style (17th ed.) CitationKovács-Endrődy, Éva. On the Late Permian Age of Ecca Glossopteris Floras in the Transvaal Provivince: With a Key to and Description of Twenty Five Glossopteris Species. Pretoria, 1991.
MLA (9th ed.) CitationKovács-Endrődy, Éva. On the Late Permian Age of Ecca Glossopteris Floras in the Transvaal Provivince: With a Key to and Description of Twenty Five Glossopteris Species. 1991.
Warning: These citations may not always be 100% accurate.