Eḳologyah maʻaśit
Subtitle: madrikh li-veḥinat-bagrut be-ʻal-pe be-viyologyah
Publisher: ʻAm ʻoved
Published: 1981
Place of publication: Tel Aviv
Language: heb
Number of pages: 167
Subjects: Biology; Study and teaching
Notes: On verso of t.p.: Practical ecology.